Joint Ownership and Insurance — Who Gets the Check?

Most insurance claims involve a single policyholder, a single loss, and a single check. But when property is co-owned— by siblings who inherited together, ex-spouses who haven’t yet divided assets, unmarried partners, business associates, or parents and adult children who bought a home jointly — the insurance claim becomes exponentially more complicated. Multiple people have interests in the same property. Multiple names may appear on the policy. Multiple signatures may be required to endorse a check. And when those co-owners disagree about whether to settle, how to repair, or who gets what share of the proceeds, the claim can grind to a halt — sometimes for years.

This article examines the legal and practical issues that arise when co-owned property suffers a loss. It covers the different ownership structures, how each affects the insurance claim, the insurable interest question for each co-owner, severability of interests clauses, the innocent co-insured doctrine, California community property rules, and practical strategies for co-owners who need to navigate a joint claim without losing their minds — or their money.

Why Joint Ownership Creates Problems in Insurance Claims

An insurance policy is a contract. It has a named insured — the person (or persons) identified on the declarations page as the policyholder. The insurer’s obligations run to the named insured. The claim check is made payable to the named insured (and often the mortgage company). The proof of loss must be signed by the named insured. The duties after loss — protecting the property, cooperating with the investigation, submitting to an examination under oath — fall on the named insured.

When there is one named insured, the lines of authority are clear. When there are two or more, every one of those obligations, rights, and procedures must be shared — or fought over. The insurance company may not know who to talk to, who to pay, or whose instructions to follow. And if the co-owners are in conflict, the insurer may use that conflict as a reason to delay or withhold payment entirely.

Co-Ownership Structures and Their Insurance Implications

Not all co-ownership is the same. The legal structure under which you hold title to the property determines your rights, your share, and — critically — what happens when a claim is filed. There are four principal forms of co-ownership in California, each with distinct implications for insurance claims.

Joint Tenancy

In a joint tenancy, two or more persons own an undivided interest in the entire property. Each joint tenant owns an equal share. The defining feature of joint tenancy is the right of survivorship: when one joint tenant dies, their interest passes automatically to the surviving joint tenant(s) — it does not go through probate and is not governed by the deceased tenant’s will.

Insurance implications: Each joint tenant has an insurable interest in the entireproperty, not merely their fractional share. This is because each joint tenant has an undivided right to possess and use the whole property. If two siblings hold a home as joint tenants, each has an insurable interest in the full value of the home. This does not mean each can collect the full value independently — it means the insurer cannot limit either sibling’s interest to 50%. The claim payment should reflect the full value of the loss, payable to both joint tenants.

Joint tenancy is common among siblings who inherit property from parents when the deed was structured with survivorship rights, and among married couples in non-community-property states. In California, married couples more commonly hold title as community property or community property with right of survivorship, but joint tenancy remains available.

Tenancy in Common

In a tenancy in common, two or more persons each own a defined share of the property — which need not be equal. One co-tenant might own 60% and the other 40%. There is no right of survivorship: when a tenant in common dies, their share passes through their estate (by will or intestate succession), not automatically to the surviving co-tenants.

Insurance implications:Each tenant in common has an insurable interest proportional to their ownership share. If you own a 40% tenancy in common interest, your insurable interest is 40% of the property’s value. This has enormous implications for claim payments. If only one co-tenant is named on the policy, the insurer may argue that it owes only the named insured’s proportionate share — not the full loss. If both co-tenants are named, the check should reflect the full value, but disputes about division of the proceeds can still arise.

Tenancy in common is the default form of co-ownership in California when the deed does not specify another form. It is extremely common in inherited property situations where a parent dies and leaves a home to multiple children, and in investment property partnerships.

Community Property (California)

California is a community property state. Property acquired during a marriage is presumed to be community property, owned equally by both spouses, regardless of whose name is on the deed or whose income was used to purchase it. California also recognizes community property with right of survivorship, which combines the community property presumption with the automatic transfer feature of joint tenancy.

Insurance implications:Because community property is owned equally by both spouses, both spouses have an insurable interest in the full value of the property. In an intact marriage, this is rarely a problem — both spouses are typically named on the policy, the claim is handled jointly, and the check is issued to both. The real complications arise during and after divorce, discussed in detail below.

Tenancy by the Entirety

Tenancy by the entiretyis a form of co-ownership available only to married couples in certain states. It functions similarly to joint tenancy — with a right of survivorship — but with the additional protection that neither spouse can unilaterally sever the tenancy or transfer their interest without the other’s consent. California does not recognize tenancy by the entirety. However, if you own property in a state that does (approximately 25 states recognize this form), and the property is insured, both spouses have an insurable interest in the entire property and neither can act unilaterally on the claim.

Who Controls the Claim?

When a loss occurs to co-owned property, one of the first questions is: who has the right to file the claim, communicate with the adjuster, make decisions about repairs, and accept or reject settlement offers? The answer depends on the policy language, the ownership structure, and whether the co-owners can agree.

The Named Insured Question

The named insured is the person or entity identified on the declarations page. In a co-ownership situation, the critical question is whether all co-owners are named on the policy. If both siblings are named insureds, both have equal rights under the policy — the right to file a claim, submit a proof of loss, receive notices, and participate in settlement discussions. If only one sibling is named, the other may have no direct relationship with the insurer at all.

This is a common and devastating mistake. One co-owner obtains the insurance policy and lists only themselves as the named insured. When a loss occurs, the unnamed co-owner discovers they have no standing to communicate with the insurer, no right to receive claim payments, and no ability to enforce the policy. Their only recourse may be against the named co-owner — not the insurance company.

Signing the Proof of Loss

The proof of loss is a sworn statement, signed under penalty of perjury, that documents the claim. Most policies require it to be signed by “the insured.” When there are multiple named insureds, the question is whether all must sign or whether any onecan sign on behalf of all.

The general rule is that each named insured must sign the proof of loss, because each is making a sworn statement about their own claim. An insurer can refuse to process a proof of loss that is missing a required signature. This becomes a serious problem when co-owners are in conflict: if one co-owner refuses to sign the proof of loss, the other co-owner’s claim can be held hostage.

In practice, some insurers will accept a proof of loss signed by fewer than all named insureds, particularly when accompanied by an explanation of why the other insured cannot or will not sign. But others will insist on all signatures. If you are in this situation, document your efforts to obtain the co-owner’s signature, put your request in writing, and consult with a public adjuster or attorney about how to proceed.

Authority to Make Claim Decisions

Settlement authority is one of the most contentious issues in joint-ownership claims. If the insurer offers $200,000 to settle a claim on a co-owned property and one co-owner wants to accept while the other wants to negotiate for more, the insurer is caught in the middle. Most policies do not address this scenario explicitly. The insurer may refuse to pay until both insureds agree, creating a deadlock that can last months or years.

Under general agency law principles, one co-owner does not have authority to bind another co-owner to a settlement unless a formal agency relationship exists (such as a power of attorney). A settlement signed by only one co-owner may not release the insurer from liability to the other. This is why insurers often insist on all parties signing a settlement agreement before issuing final payment.

The Check Problem: Multiple Payees Who Cannot Agree

Here is where the rubber meets the road. The insurer writes a check. It is made payable to “John Doe AND Jane Doe AND First National Bank” (the mortgage company). The check requires all payees’ endorsements to be deposited. John and Jane are siblings who inherited the property. They do not get along. Jane wants to rebuild. John wants to sell the lot and split the cash. Neither will endorse the check unless the other agrees to their terms. The mortgage company will not release its interest until the property is repaired or the loan is paid off. The check sits in a drawer. The damaged property deteriorates further. Everyone is stuck.

This scenario plays out with depressing frequency. The insurer has fulfilled its obligation — it issued the check. The problem is that the payees cannot agree on what to do with it. The insurer is not required to mediate between co-owners, allocate the proceeds, or issue separate checks to each co-owner based on their ownership share. It issues one check to all named insureds and walks away.

Breaking the Deadlock

When co-owners cannot agree on the use of insurance proceeds, there are several legal mechanisms that can break the impasse:

• Partition action:Under California Code of Civil Procedure § 872.210, any co-owner of property can petition the court for a partition— a forced division or sale of the property. In the context of an insurance claim, a partition action can be used to force the sale of the damaged property and the division of the proceeds (including insurance proceeds) among the co-owners according to their respective interests.
• Interpleader: If the insurer is holding funds that multiple parties claim, the insurer can file an interpleader action, depositing the disputed funds with the court and asking the court to determine who is entitled to what share. This relieves the insurer of the obligation to choose sides.
• Court-ordered distribution:A co-owner can petition the court for an order directing the distribution of insurance proceeds according to each party’s ownership interest. This is often faster than a full partition action.
• Mediation: Voluntary mediation between co-owners can resolve disputes more efficiently and less expensively than litigation. Many family disputes over inherited property are resolved through mediation, particularly when a neutral third party can help the co-owners see the financial cost of continued conflict.

The Insurable Interest Question for Co-Owners

Every named insured must have an insurable interest in the property. For co-owners, the question is: what is the extent of each co-owner’s insurable interest? Is it limited to their fractional ownership share, or does it extend to the full value of the property?

The answer depends on the type of co-ownership and the jurisdiction. California Insurance Code § 281 defines insurable interest broadly as “any lawful and substantial economic interest in the safety or preservation of property from loss, destruction, or pecuniary damage.” Under this definition:

• Joint tenants each have an insurable interest in the full value of the property, because each has an undivided right to possess and use the entire property.
• Tenants in commonhave an insurable interest at least equal to their proportionate share. However, a tenant in common may also have an insurable interest in the full value if they have a financial stake in the entire property — for example, if they are responsible for property taxes or maintenance on the whole property, or if the loss of the property would impair their right to use and enjoy it.
• Community property spouses each have an insurable interest in the full value of community property.

Under California Insurance Code § 281 and its broad definition of insurable interest, a co-owner’s insurable interest is not necessarily limited to their fractional ownership share. A co-owner who resides in the property, pays the mortgage, and maintains the home has a substantial economic interest in the preservation of the entire property, not merely their percentage interest. This principle is significant for co-owners who are bearing the primary financial responsibility for the property.

When Co-Owners Disagree About Settlement, Repairs, or Cashing Out

Co-owner disputes in insurance claims fall into several recurring patterns:

Rebuild vs. Cash Out

The most common dispute. One co-owner wants to rebuild the damaged property and continue living there or renting it out. The other wants to take the insurance money, sell the property as-is (or the lot, if it is a total loss), and walk away. This dispute is particularly common among siblings who inherited property and have different financial needs, different emotional attachments, and different visions for the property’s future.

The insurance policy does not resolve this dispute. The policy pays for the loss. How the co-owners use the proceeds is their decision — and if they cannot agree, it becomes a legal dispute among the co-owners, not a dispute with the insurer. The co-owner who wants to rebuild cannot compel the other to contribute their share of the proceeds toward construction. The co-owner who wants to cash out cannot force the other to accept a buyout.

Practical impact on the claim:Most homeowner policies with replacement cost coverage pay actual cash value (ACV) first and then pay the difference between ACV and replacement cost only after the repairs are actually completed. If the co-owners cannot agree to rebuild, the repairs will never be completed, and the replacement cost holdback will never be released. The co-owners will be stuck with the lower ACV payment. This means the co-owners’ dispute directly reduces the total payout.

Scope of Repairs

Even when both co-owners agree to repair, they may disagree about the scope. One may want a comprehensive restoration to pre-loss condition. The other may want minimal repairs to reduce out-of-pocket costs. They may disagree about contractor selection, material choices, or whether to invoke ordinance or law coverage for code upgrades. These disputes can delay the start of repairs, increase interim housing costs (if applicable), and create additional damage from weathering or neglect of the damaged property.

Cooperation with the Insurer

Insurance policies impose duties on the insured: protect the property from further damage, cooperate with the investigation, submit to an examination under oath if requested, and provide documentation. When one co-owner fulfills these duties and the other refuses, the insurer may argue that the non-cooperating co-owner has breached the policy conditions, potentially jeopardizing the entire claim. Whether one co-owner’s breach can void coverage for the other co-owner depends on the severability of interests clause, discussed below.

Severability of Interests: The Policy Provision That Matters Most

The severability of interestsclause (sometimes called the “separation of insureds” provision) is the single most important policy provision in any joint-ownership claim. It determines whether one co-owner’s conduct can destroy coverage for the other.

The standard ISO HO-3 homeowner’s policy includes a severability provision that reads, in relevant part:

“This insurance applies separately to each ‘insured.’ This condition shall not increase our limit of liability for any one ‘occurrence.’”

What this means is that the policy should be read as if each named insured has a separate policy. The acts, omissions, and conduct of one insured are not automatically attributed to the other. If co-owner A commits fraud — inflating the claim, misrepresenting damage, or submitting false documents — the severability clause means that co-owner B’s coverage should not be voided by co-owner A’s misconduct, provided co-owner B was not involved.

However, the scope of the severability clause is not unlimited. Some policy conditions are considered “joint obligations” that apply to all insureds collectively, while others are “several obligations” that apply to each insured individually. Courts have wrestled with which is which, and the results are not uniform.

The Arson Problem: When One Co-Owner Caused the Loss

No joint-ownership scenario is more legally charged than the one where one co-owner is responsible for the loss. The most dramatic version is arson: one co-owner intentionally sets fire to the property. But intentional damage takes many forms — vandalism during a domestic dispute, deliberate neglect, or destruction driven by financial desperation.

Every homeowner’s policy contains an intentional loss exclusion, typically worded:

“We do not insure for loss caused intentionally by or at the direction of an ‘insured.’”

The question is: when one co-owner intentionally causes the loss, does the exclusion bar all insureds from recovering, or only the one who committed the act? This is the innocent co-insured problem, and it has generated significant case law nationwide.

The Innocent Co-Insured Doctrine

The innocent co-insured doctrineholds that when one insured intentionally causes a loss, the other insured — who had no knowledge of or involvement in the intentional act — should still be able to recover their share of the insurance proceeds. The doctrine is grounded in two principles: the severability of interests clause, and basic fairness.

Where a policy contains a severability clause, courts in multiple states, including Illinois and Iowa, have addressed whether an innocent co-insured can recover when the other insured commits arson. The prevailing view holds that the “intentional acts” exclusion should be applied separately to each insured under the severability clause. The arsonist co-owner is barred. The innocent co-owner is not.

Borman v. State Farm Fire & Casualty Co., 446 Mich. 482, 521 N.W.2d 266 (1994)extended this analysis to domestic situations. The Michigan Supreme Court held that an innocent co-insured could recover their share of the proceeds under the severability clause. The court reasoned that the severability provision requires the policy to be read as providing separate coverage to each insured, and the guilty party’s intentional act could not be imputed to the innocent co-insured.

States That Reject the Innocent Co-Insured Doctrine

Not all states follow the innocent co-insured doctrine. Some courts have held that the intentional loss exclusion bars recovery by all insureds when anyinsured intentionally causes the loss. The rationale is textual: the exclusion says “caused intentionally by an insured,” not “by theinsured seeking recovery.” Under this reading, the use of the indefinite article “an” means that the intentional act of any one insured triggers the exclusion for all.

The distinction between these approaches is significant enough that it can determine whether an innocent co-owner recovers hundreds of thousands of dollars or nothing. In California, the weight of authority favors the innocent co-insured, but the specific policy language always matters. Some policies have been drafted with express language to override the severability clause in intentional-loss situations.

California’s Legislative and Judicial Response: Insurance Code § 530

California has addressed the innocent co-insured problem through Insurance Code § 530, which provides that an insurer is not liable for a loss caused by the “willful act of the insured.” California courts have interpreted the use of “the insured” — the definite article — as limiting the exclusion to the specific insured who committed the willful act, not to all insureds on the policy. This interpretation, read alongside severability clauses in standard homeowner policies, effectively protects the innocent co-insured in residential property claims in California.

Under this framework, the innocent co-insured’s recovery is limited to their proportionate interest in the property. The innocent co-insured is not entitled to the full policy limits — only their ownership share. But the intentional act of one insured cannot zero out the recovery of the other.

Community Property and Insurance Claims During and After Divorce

Divorce creates one of the most complicated insurance scenarios possible. A married couple’s home is community property. Both spouses are named insureds. One spouse moves out. The other remains. The divorce is not yet final. A fire, a burst pipe, a tree falls on the roof. Who files the claim? Who gets the check? Does the spouse who moved out still have coverage?

During the Divorce: Before the Final Judgment

Until the divorce is final and the property is awarded to one spouse by the court, both spouses remain co-owners of community property. Both remain named insureds on the policy (unless one has been removed, which requires the other’s consent or a court order). Both have an insurable interest in the full value of the property.

This creates immediate practical problems. The spouse who moved out may have no access to the property, no ability to protect it from further damage, and no knowledge of what is happening with the claim. The spouse who remains may be dealing with the adjuster, making repair decisions, and controlling the claim proceeds without the other spouse’s involvement.

California family law provides some protection.Under Family Code § 1101, each spouse has a fiduciary duty to the other with respect to community property. This means the spouse handling the insurance claim has a legal obligation to act in the best interest of both spouses — not just themselves. A spouse who accepts a lowball settlement, diverts claim proceeds, or fails to pursue available coverage may be liable for breach of fiduciary duty.

After the Divorce: When the Property Is Awarded

Once the divorce is final and the property is awarded to one spouse by the court, the other spouse’s ownership interest terminates. But the insurance policy may not automatically updateto reflect this change. If both spouses were named insureds before the divorce and the policy is not amended, the non-owning ex-spouse may still technically be a named insured — with no insurable interest in the property.

This matters for two reasons. First, the insurer may issue a claim check payable to both ex-spouses, even though only one owns the property. The ex-spouse who no longer has an ownership interest must endorse the check but has no entitlement to the proceeds — creating leverage that can be abused. Second, if the non-owning ex-spouse refuses to endorse, the owning ex-spouse may need a court order to access the insurance proceeds.

The Arson Scenario in Divorce

Intentional destruction of the marital home during a contentious divorce is, tragically, not rare. When one spouse intentionally sets fire to or otherwise destroys community property, California Insurance Code § 530, as interpreted by California courts alongside the policy’s severability clause, protects the innocent spouse. The innocent spouse can recover their community property share (typically 50%) of the insurance proceeds. The guilty spouse’s share is forfeited under the intentional loss exclusion.

Additionally, the innocent spouse may have family law remedies. Under Family Code § 1101(h), a spouse who intentionally destroys community property is liable for a penalty equal to the value of the destroyed asset. This means the guilty spouse may owe the innocent spouse morethan the insurance proceeds — they may owe the full value of the property that was destroyed, regardless of insurance.

Inherited Property: The Sibling Nightmare

Inherited property is the most common source of joint-ownership insurance disputes. A parent dies and leaves the family home to two, three, or four children. The children may have dramatically different financial situations, different emotional attachments to the property, and different plans for its future. One may be living in the home (sometimes rent-free). One may live across the country and view the property purely as a financial asset. One may have sentimental attachment and refuse to sell at any price.

When a loss occurs, all of these tensions explode simultaneously. The insurance claim forces decisions that the siblings have been avoiding: What is the property worth? Who is responsible for maintenance? Who should control the claim? How should the proceeds be divided?

Common Inherited-Property Insurance Mistakes

• Failing to update the policy after the parent’s death.If the parent was the sole named insured and the policy was never updated after their death, the children may discover that the policy provides limited or no coverage. The named insured is deceased. The children are not named on the policy. The insurer may issue payment to the estate — not the individual heirs — creating probate complications. See our article on what happens to insurance when the policyholder dies for a detailed analysis.
• Only one sibling obtaining insurance.Often, one sibling takes the initiative to get a new policy after the parent’s death, lists only themselves as the named insured, and the other siblings assume they are covered. They are not. If the policy names only one sibling, the other siblings have no direct rights under the policy.
• Underinsuring the property.Inherited homes are often older, and families frequently maintain the same coverage limits the parent had — limits that may be decades out of date and far below current replacement cost.
• Not having any insurance at all.In some cases, the parent’s homeowner policy lapses after death, and no one obtains replacement coverage. The property sits uninsured for months or years while the estate is being administered.

Unmarried Partners and Co-Owners Without Legal Formalities

Unmarried couples who buy property together, friends who invest in a home jointly, or family members who pool resources to purchase a property often do so without the legal infrastructure that married couples have. There may be no written co-ownership agreement, no defined ownership percentages, no designated decision-maker, and no legal framework for resolving disputes.

When a loss occurs, the lack of formality becomes a crisis. If the deed lists both parties but the insurance policy names only one, the unnamed co-owner has no policy rights. If the relationship ends and the parties separate, the insurance may remain in joint names long after the relationship is over — creating the same endorsement and control problems as a divorce, but without the family court framework to resolve them.

Business Partners and Investment Property

When business partners co-own investment property, the insurance issues multiply. Business partnerships may hold property in individual names, in a general partnership, in an LLC, or in a corporation. Each structure has different implications for who is the named insured, what constitutes the insurable interest, and how claim proceeds are distributed.

The most common mistake is holding property in individual names while the insurance is in the partnership or LLC name (or vice versa). This creates a mismatch between the legal owner and the named insured that the carrier can exploit at claim time. The correct approach is to ensure that the entity that holds legal title to the property is the named insured on the policy, and that the policy form matches the property’s use (landlord policy for rental property, commercial policy for commercial use).

Partnership disputes add another layer. If one partner wants to settle the claim quickly at a lower amount and the other wants to hold out for full value, the partnership agreement should govern — but many small partnerships have no written agreement, or the agreement does not address insurance claims. In the absence of a governing agreement, partnership law (California Corporations Code § 16401 et seq.) provides default rules, but those rules may not produce the outcome either partner expects.

The Mortgage Company Complication

Most co-owned properties have a mortgage. The mortgage company is listed on the insurance policy as a loss payee or mortgagee. Under the standard mortgage clause, the insurer must include the mortgage company on all claim checks above a certain threshold (often $10,000 or $20,000, depending on the policy and the lender’s requirements).

This means the claim check is payable to “Co-Owner A AND Co-Owner B AND Mortgage Company.” Three-party checks require all three endorsements. The mortgage company will typically hold the proceeds in escrow and release them in stages as repairs are completed — a process that is cumbersome even in single-owner claims. When co-owners disagree about repairs, the mortgage company’s involvement adds another layer of complexity: the lender has its own interest in seeing the property restored to protect its collateral, and it may refuse to release funds for anything other than repairs.

If one co-owner wants to use the insurance proceeds to pay off the mortgage and walk away, the mortgage company will generally consent to this — it gets its loan repaid. But the other co-owner, who wanted to rebuild, may object to the mortgage being paid off with what they view as their repair money. The resulting three-way deadlock can be extraordinarily difficult to resolve without legal intervention.

Practical Strategies for Co-Owners Navigating a Joint Claim

If you are a co-owner facing an insurance claim on jointly owned property, the following steps can help protect your interests and move the claim forward:

1. Confirm Your Policy Status Immediately

Request a copy of the current declarations page and the full policy. Verify that all co-owners are named insureds. Verify the coverage limits. Identify the mortgage company and any other loss payees. If your name is not on the policy, understand that you may not have direct rights against the insurer — your recourse may be against your co-owner.

2. Communicate in Writing

Every communication between co-owners about the insurance claim should be in writing — email at minimum. If you and your co-owner disagree, you need a record of what was proposed, what was rejected, and why. If a dispute later ends up in court or mediation, the written record will be critical. Verbal agreements between co-owners are notoriously difficult to enforce.

3. Hire Your Own Public Adjuster or Attorney

When co-owners have conflicting interests, a single representative cannot adequately represent both. One co-owner should not assume that the public adjuster or attorney hired by the other co-owner is looking out for their interests. If you have a significant ownership stake and the claim is substantial, retain your own professional. The cost of independent representation is far less than the cost of being marginalized in a claim that involves your property.

4. Do Not Sign Anything Without Understanding It

Settlement agreements, releases, and proofs of loss are legally binding documents. Once you sign a release, you may be giving up rights that cannot be recovered. If your co-owner or the insurer presents a document for your signature, have it reviewed by your own representative before signing. This is especially important for settlement agreements that purport to release the insurer from all further claims — you may be releasing rights to supplemental payments, replacement cost holdback, or other benefits that have not yet been calculated.

5. Consider a Buyout

If one co-owner wants to rebuild and the other wants to cash out, a buyoutmay be the most practical solution. The co-owner who wants to keep the property offers to buy the other co-owner’s interest at fair market value (or at an agreed price). The insurance proceeds are then used by the remaining owner to fund the repairs. This eliminates the conflict and allows the claim to proceed with a single decision-maker.

The buyout can happen before or after the insurance claim is settled. If it happens before, the parties need to agree on how to value the co-owner’s interest (which may include their share of the expected insurance proceeds). If it happens after, the insurance proceeds are divided first, and then the buyout addresses the remaining property interest.

6. Address the Mortgage Company Early

If there is a mortgage on the property, contact the lender early in the process to understand their requirements for releasing insurance proceeds. Many lenders will require the co-owners to submit a repair plan before releasing any funds. Knowing these requirements upfront allows the co-owners to plan accordingly — or to negotiate with the lender for a different arrangement if they plan to sell rather than repair.

7. File Your Own Proof of Loss If Necessary

If your co-owner refuses to file a proof of loss or is unreachable, you should file your own. Under the severability of interests clause, the policy applies separately to each insured. You have an independent obligation to comply with the policy conditions — and an independent right to make a claim. File your own proof of loss documenting your interest, your share of the loss, and the basis for your claim. If the insurer refuses to accept it without the other co-owner’s signature, document that refusal in writing and consult with an attorney about your options.

8. Protect the Property Regardless of the Dispute

The duty to protect the property from further damage applies to all co-owners. If you are in a dispute with your co-owner, do not let the property deteriorate while you argue. Board up openings, tarp the roof, remove standing water, and take whatever emergency measures are necessary to prevent additional damage. Document everything with photographs and receipts. If the insurer later denies coverage for additional damage caused by failure to protect the property, you do not want to be the co-owner who failed to act.

Key Case Law Summary

The following cases are particularly relevant to joint-ownership insurance disputes:

• California Insurance Code § 281:Defines insurable interest broadly. A co-owner’s insurable interest is not necessarily limited to their fractional ownership share. The analysis examines the economic reality of the co-owner’s stake.
• Borman v. State Farm Fire & Casualty Co., 446 Mich. 482, 521 N.W.2d 266 (1994): The Michigan Supreme Court held the innocent co-insured could recover under the severability clause.
• Osbon v. National Union Fire Insurance Co., 632 So. 2d 1158 (La. 1994): Confirmed proportionate recovery for innocent co-insured; the innocent party recovers their ownership share, not the full policy limits.
• California Insurance Code § 530:Courts have interpreted § 530, alongside severability clauses, to protect the innocent co-insured in residential property claims in California. An innocent co-insured recovers their proportionate share even when the other insured intentionally caused the loss.

Preventing Joint-Ownership Claim Disasters: A Checklist

Whether you are purchasing co-owned property, inheriting it, or currently holding it with another person, the following steps will help prevent the worst outcomes if a loss occurs:

1. Ensure all co-owners are named insureds on the policy.Review the declarations page annually. If a co-owner’s name is missing, add them immediately.
2. Match the policy to the ownership structure. If the property is held in a trust, the trust should be the named insured. If it is held in an LLC, the LLC should be the named insured. If title changes, the policy must change.
3. Verify adequate coverage limits. Co-owners sometimes underinsure because each assumes the other is handling the insurance. Review replacement cost limits annually, particularly for inherited property where limits may be decades old.
4. Execute a co-ownership agreement. For non-spousal co-owners, a written agreement that addresses insurance responsibilities, claim authority, and proceeds allocation is essential. Have an attorney prepare it.
5. Update the policy after any life event.Death of a co-owner, divorce, marriage, addition of a co-owner, transfer to a trust, refinancing — each is a trigger to review and update the insurance.
6. Maintain records of contributions. Keep records of who pays the mortgage, who pays the insurance premiums, who pays for maintenance and repairs. These records are relevant to the insurable interest analysis and to allocation of proceeds.
7. Identify potential conflicts early.If you know that you and your co-owner have different plans for the property, address those differences before a loss forces the issue. A conversation about what to do “if something happens” is far easier than a conversation during a crisis.

Conclusion

Joint ownership of insured property is not inherently problematic. Millions of co-owners maintain insurance on shared property without incident. The problems arise when a loss occurs and the co-owners discover that their policy was not set up correctly, that their interests conflict, or that one co-owner’s conduct has put the other’s coverage at risk.

The severability of interests clause is the co-owner’s most important protection, ensuring that the policy is read as providing separate coverage to each insured. California Insurance Code § 530, as interpreted by California courts alongside severability clauses, provides protection for innocent co-insureds in residential property claims. And the case law — including Bormanand decisions from multiple states — provides a substantial body of authority supporting co-owners who are caught in disputes not of their making.

But the best protection is preparation. Ensure that all co-owners are named on the policy. Execute a written co-ownership agreement. Update the insurance every time ownership changes. And when a loss occurs, retain independent professional representation if your interests diverge from your co-owner’s. The insurance claim is one check. Your job is to make sure you get your share of it.