Short answer: A property insurance claim is decided largely by evidence, and most of that evidence has to exist before the loss happens. Maintenance records establish that damage was sudden rather than gradual. Condition documentation establishes the state of the property beforehand. Inspection history establishes that systems were maintained. Without those, a covered loss becomes a disputed one, and the dispute is about proof rather than about coverage.

The claim process itself is procedural: notify, mitigate, document, submit a proof of loss, negotiate, settle. What separates a claim that pays from one that stalls is almost never the procedure. It is what you can produce when asked.

This article covers the process and, more usefully, the records that decide it. It is written for United States property managers and owners, and claims practice varies by state and by policy. It covers claims on the building and the operation, not resident policies, which RIOO's guide to renters insurance requirements addresses separately.

Key takeaways

• Documentation demands have escalated. The standard is now closer to exhaustive proof than reasonable proof.

• The sudden-versus-gradual test shapes a large share of property claims, and maintenance records are what answer it.

• Loss of rents and business interruption are different coverages. Landlords usually need the first.

• Proof of loss deadlines are contractual. Extensions are available and must be requested in writing.

• Large commercial claims routinely run months rather than weeks. Plan cash flow accordingly.

In this guide

• Who files the claim, and what is the manager's role?

• What to do in the first 48 hours

• The sudden versus gradual test

• What documentation actually decides a claim

• Loss of rents or business interruption?

• Proof of loss and the deadline nobody reads

• What the claim timeline actually looks like

• Who is who: adjusters, public adjusters, and restoration contractors

• How long claims take, and what to do when one stalls

• When not to file

• Common mistakes

• Frequently asked questions

Who files the claim, and what is the manager's role?

Short answer: The named insured files. For a managed property that is usually the owner or the ownership entity, not the management company. The manager's role is defined by the management agreement, and it typically covers notification, mitigation, documentation, and coordination rather than the claim itself.

That division matters because it determines who does what under time pressure.

Two things worth confirming in your management agreement before you need them: whether you have authority to notify the carrier directly, and what your emergency spend authority is when mitigation is urgent. Emergency work during a loss frequently exceeds standard approval limits, which is one reason approval thresholds need a defined emergency provision.

What to do in the first 48 hours

The window matters more than most teams realise, because the evidence degrades and the mitigation obligation starts immediately.

1. Make it safe and stop the loss spreading. Most policies impose a duty to mitigate. Failing to act can reduce or void recovery for damage that continued after you knew about it.

2. Photograph and video before anything moves. Wide shots establishing location, close shots establishing detail, and timestamps. Photograph the source, not just the damage. This is the single most useful thing anyone does in the first day.

3. Do not dispose of damaged property. Insurers may want to inspect it. Move it, store it, photograph it, but do not throw it out until the adjuster has released it.

4. Notify the carrier. Promptly, in writing, even where you are unsure whether the loss will exceed the deductible. Late notice is a common basis for dispute.

5. Start a claim log. Every call, email, visit, and instruction, with dates and names. This becomes the record of what the carrier told you and when.

6. Keep every receipt for mitigation. Emergency board-up, water extraction, temporary heating. These are usually recoverable and are usually the ones that get lost.

7. Track affected units and tenant impact from day one. Which units are uninhabitable, from what date, at what rent. This is your loss of rents claim, and reconstructing it later is difficult.

The sudden versus gradual test

This question shapes the outcome of a large share of property claims, and it is where maintenance records earn their keep.

Commercial property policies cover sudden and accidental damage. They exclude gradual deterioration. Analysis of commercial property exclusions puts it directly: wear and tear refers to gradual deterioration over time, policies exclude damage caused by aging materials or routine use, roofing materials weaken and pipes corrode through daily operation, and insurers expect owners to maintain buildings and replace worn equipment. Those exclusions exist specifically to prevent claims for damage that maintenance could have prevented.

The practical consequence is that a burst pipe and a slowly leaking pipe produce similar damage and entirely different outcomes.

The mould row deserves a note, because it catches operators out. Mould is frequently excluded outright or subject to a low sub-limit, and where it is covered at all, coverage usually depends on it resulting from a covered water event that was addressed promptly. A leak reported and fixed in 48 hours and a leak left for three weeks produce the same mould and very different claims.

What proves your side of any of these arguments is not a photograph taken after the loss. It is the maintenance history showing the system was inspected, serviced, and functioning before it. A portfolio that can produce a five-year service record for a failed component is arguing from evidence. One that cannot is arguing from assertion.

That is why the compliance and inspection calendar matters beyond compliance. Its output is the evidence base for every claim you will ever make.

What documentation actually decides a claim

Carriers now expect far more than they did. Industry commentary on the current environment describes carriers asking for more photos, more itemised inventories, more sworn proofs of loss, more contractor estimates with line-item backup, and more engineering opinions, with poor documentation becoming a leading reason claims stall or are partially denied.

The first four rows tend to be what separates a paid claim from a fought one, and none of them can be created after the fact. That is the whole argument of this article.

Which means the practical question is not how you assemble evidence after a loss. It is whether every completed job already carries its own record: what was done, by whom, on what date, with photographs attached. A work order system that captures evidence at completion produces a claims file as a by-product of ordinary maintenance. A system that only records that a job was closed produces nothing you can use.

Loss of rents or business interruption?

These are related and frequently confused, and the distinction matters for landlords.

Loss of rents covers rental income lost when a covered event makes units uninhabitable and tenants vacate. It is the coverage most landlords and property owners actually need.

Business interruption covers lost business income when operations are interrupted. It applies where you are running a business at the property rather than collecting rent from tenants who run their own.

Guidance on the distinction illustrates it with a fire in an apartment or commercial rental building causing tenants to vacate, where loss of rent insurance covers the missing rental income, while utility failures or equipment breakdowns may instead trigger business interruption coverage.

For most property portfolios, three things determine the size of the claim:

• Which units were affected, and from what date. Not the building, the units.

• The rent that would have been collected. Actual, not asking.

• The period of restoration. How long repair reasonably takes, which is often disputed.

The last one is a frequent point of contention. A carrier arguing for a shorter restoration period is arguing for a smaller payment, and the evidence is contractor scheduling, material lead times, and permit timelines.

One thing worth checking in your own policy before you need it: whether extra expense is covered. That is money spent to reduce the interruption, such as expedited materials or temporary accommodation, and it is a separate line from the lost income itself.

Proof of loss and the deadline nobody reads

Most policies require a sworn proof of loss within a set period after the carrier requests it. Sixty days is common. It is a contractual deadline, not a suggestion.

The trap is that a thorough proof of loss on a significant commercial claim frequently takes longer than sixty days to prepare. Policyholder-side legal guidance is specific about the remedy: if sixty days is not enough time, as it often is not in a major commercial loss, request an extension from the insurer in writing and obtain written confirmation that the extension has been granted.

Both halves of that matter. Request in writing, and get the grant in writing. A verbal assurance from an adjuster who later leaves the file is not an extension.

The same guidance makes a second point worth carrying: for many commercial policyholders, the lost business income component of a property claim dwarfs the physical damage. Teams focused on repair cost frequently underclaim the part that was worth more.

What the claim timeline actually looks like

Short answer: Six stages, and the two that consume the most time are investigation and negotiation, neither of which has a fixed duration.

Two things about that table are worth planning around. Payment is often staged rather than lump sum, particularly where a policy holds back recoverable depreciation until repairs are complete, which means the money arrives after you have spent it. And the investigation stage is where documentation quality shows: a file that answers questions before they are asked moves through it quickly, and one that does not stays there.

Who is who: adjusters, public adjusters, and restoration contractors

Three roles that arrive in the same week and answer to different people.

On public adjusters. They are licensed in most states and represent the policyholder rather than the insurer. They typically charge a percentage of the settlement. Whether to engage one is a genuine judgment call: they can bring claims expertise that property teams often lack in-house, and their fee reduces the net recovery. Views differ sharply, including among people with no commercial interest either way. Licensing requirements, permitted fees, and when they may be solicited are regulated at state level, so check your state's position.

One practical caution on restoration contractors. A contractor arriving unprompted after a widely reported storm event is a pattern worth being careful about. Verify licensing and insurance before anyone starts work, and be wary of signing anything assigning your claim rights.

How long claims take, and what to do when one stalls

Expectations here are frequently wrong, which causes cash flow problems that are avoidable.

Most states give carriers a defined window to investigate and pay a properly filed claim, commonly around 90 days, but large commercial losses routinely run considerably longer. Industry commentary describes commercial files stretching six to eighteen months, driven by adjuster capacity, escalating documentation demands, supply chain effects on repair scope, and tighter policy language around roofs, valuation, and business interruption triggers.

Plan for the long version. A property with a significant loss may be carrying repair costs and lost rent for two or three quarters before settlement.

When a claim stalls, the tools are defined rather than improvised:

• Written follow-up with a specific request. Vague chasing produces vague responses. Ask for a named document or decision by a named date.

• Escalation within the carrier. Adjusters have supervisors, and files get reassigned.

• Appraisal. Most policies contain an appraisal clause for disputes about value rather than coverage. It is faster and cheaper than litigation.

• State insurance department complaint. Free, and carriers respond to it.

• Coverage counsel. Where the dispute is about whether something is covered rather than what it is worth.

Appraisal is the underused option. It resolves valuation disputes without a coverage fight, and many teams do not know their policy contains the clause.

When not to file

Not every loss should become a claim, and this is a decision worth making deliberately.

Two cautions on that. Claims history affects premiums and, in a hard market, availability. And a decision not to file is still worth documenting, because it establishes that the damage was known, assessed, and addressed, which matters if related damage emerges later.

The decision belongs to the owner rather than the manager, and it should be presented with the numbers: estimated repair cost, deductible, claims history, and the manager's view. Not made unilaterally.

Common mistakes

Frequently asked questions

1. How do you file a property insurance claim?
Make the property safe and mitigate further damage, photograph everything including the source, notify the carrier promptly in writing, keep all mitigation receipts, start a claim log, and prepare a sworn proof of loss within the period the policy requires. The named insured files, which for a managed property is usually the owner rather than the management company.

2. Who files an insurance claim on a managed property, the owner or the manager?
The named insured, usually the owner or ownership entity. The management agreement typically gives the manager responsibility for notification, mitigation, documentation, and coordination, but the claim itself belongs to the owner. Confirm the split in your agreement before a loss.

3. What is the difference between sudden and gradual damage in an insurance claim?
Commercial property policies cover sudden and accidental damage and exclude gradual deterioration such as wear and tear, corrosion, and aging materials. A pipe that bursts is generally covered. A pipe that leaked slowly for months generally is not. Maintenance records are what establish which occurred.

4. What documentation do you need for a property insurance claim?
Maintenance and service records, inspection reports, pre-loss condition photographs, an asset register with installation dates, immediate loss photographs and video, mitigation receipts, contractor estimates with line-item detail, rent roll and occupancy at the date of loss, and a claim log. The first four have to exist before the loss.

5. What is the difference between loss of rents and business interruption insurance?
Loss of rents covers rental income lost when a covered event makes units uninhabitable and tenants vacate. Business interruption covers lost income when your own business operations are interrupted. Landlords collecting rent from tenants usually need the first.

6. What is a proof of loss and when is it due?
A sworn statement of the loss and the amount claimed, usually required within a set period after the carrier requests it, commonly sixty days. It is a contractual deadline. Where more time is needed, request an extension in writing and obtain written confirmation that it has been granted.

7. What does a public adjuster do?
Represents the policyholder rather than the insurer in preparing and negotiating a claim, typically for a percentage of the settlement. They are licensed at state level, and licensing rules, permitted fees, and solicitation restrictions vary by state.

8. How long does a commercial property insurance claim take?
Most states give carriers a defined window to investigate and pay a properly filed claim, commonly around 90 days, but large commercial losses routinely take considerably longer. Plan cash flow on the assumption that a significant claim may take several quarters rather than several weeks.

9. What can you do if an insurance claim is delayed?
Follow up in writing with a specific request and deadline, escalate within the carrier, invoke the policy's appraisal clause where the dispute is about value rather than coverage, file a complaint with your state insurance department, and engage coverage counsel where the dispute concerns whether something is covered.

10. Should you always file a property insurance claim?
No. Where the loss is near the deductible, the cause is likely excluded, or the property has recent claims, filing may cost more in renewal terms than it recovers. The decision belongs to the owner and should be documented either way, since a recorded decision not to file establishes that the damage was known and addressed.

The uncomfortable part of insurance claims is that the outcome is largely determined before anyone knows a claim is coming. A carrier deciding whether damage was sudden or gradual is reading your maintenance records. A carrier valuing a loss of rents claim is reading your rent roll. Neither can be improved after the fact.

Which means the most effective claims preparation is not a claims process at all. It is a maintenance record that is current, an inspection history that is complete, and a rent roll that is accurate on any given day, none of which anyone maintains because of insurance.

This article provides general information and is not legal or insurance advice. Policy terms, coverage, exclusions, deadlines, claims-handling requirements, and public adjuster regulation vary by policy and by state. Confirm your position against your own policy and with qualified advisers.