Notice, proof of loss, and a lawsuit run on different clocks
Most homeowner and commercial property policies require prompt notice of a loss, and an insurer may argue that a long delay hurt its ability to investigate. Separately, many policies require a sworn proof of loss within a stated period after the insurer asks for one, and nearly all contain a clause limiting how long you have to sue over a disputed claim. Some states that see hurricanes often have also passed laws setting specific deadlines for hurricane claims, supplemental claims, or reopened claims. So the answer to how long you have depends on your policy wording and on the law of the state where the property sits. Reading the conditions section of the policy is the first step.
Flood claims follow their own timetable
Damage from rising water is usually excluded under a standard homeowners policy and handled under a flood policy, often issued through the National Flood Insurance Program. That program enforces its proof-of-loss requirement strictly, and the period starts from the date of loss rather than from when an adjuster gets back to you. After major storms, FEMA has sometimes extended that requirement, so check current announcements rather than assuming. A lawsuit over a disputed flood claim generally has to be filed in federal court within a limited period after a written denial. Keep wind and flood paperwork separate, because the two insurers may each attribute damage to the other.
What to do while the clocks run
Report the loss to every insurer that might be involved as soon as you can, even before you know the full extent, and keep a record of the date and claim number. Photograph and video the damage before cleanup, keep damaged items or samples where it is safe to do so, and save receipts for emergency repairs and temporary housing. Keep track of each conversation with adjusters and ask for explanations in writing. If an insurer has underpaid or denied part of the claim, we review the policy's time limits and any state rules to identify the date that actually controls. Waiting for the insurer to finish its process is not always safe, since the time to sue may keep running.