PROPERTY TERMS & CONCEPTS · 6 MIN READ

Claims Conditions, Subrogation, and Market Mechanics

The policy's conditions section choreographs the claim. The insured must give prompt notice, protect property from further damage (the mitigation duty, echoed in marine practice by the sue-and-labor clause), submit a signed sworn proof of loss on demand, and sit for examination under oath. Disputes over amount — not coverage — go to appraisal: each party selects a competent and impartial appraiser, meaning one who is disinterested, free of contingent-fee stakes in the outcome, and independent of the party's control; the two appraisers pick an umpire, and a court appoints one if they cannot agree. The suit-limitation clause imposes a contractual deadline for filing suit against the insurer. When other insurance covers the same loss on the same basis, commercial property forms apportion pro rata by limits: each carrier pays the share its limit bears to the total of all limits — a $100,000 loss under a $400,000 policy and a $100,000 policy splits $80,000 and $20,000. Loss payees are protected differently by clause type: an open (simple) loss payable clause makes the lender a mere payee whose recovery dies with the insured's policy violations, while the standard (union) mortgage clause creates an independent contract that survives the insured's own acts, provided the lender performs its duties; a lender's loss payable clause extends similar protection in equipment financing. After payment, the insurer steps into the insured's recovery rights through subrogation, a direct derivative of the indemnity principle. Equity then referees the split: under the common-fund doctrine, the insurer contributes proportionally to the attorney fees that produced the third-party recovery, and under the made-whole doctrine the insured's own uncompensated loss — typically the deductible — is reimbursed before the insurer takes anything. Salvage rights let the insurer take damaged property it has paid for, but abandonment runs one way: the insured cannot force abandoned property onto the insurer. Cancellation refunds complete the conditions picture: insurer-initiated cancellation returns unearned premium pro rata (premium times days remaining over 365), while insured-initiated cancellation traditionally triggers a short-rate refund — always smaller, because a penalty is retained. The market-mechanics layer supplies the remaining vocabulary. The underwriting cycle alternates hard markets (rising rates, restricted capacity, tighter terms after capital depletion) and soft markets (rate cutting and loosened standards amid abundant surplus). A combined ratio of 100 percent is underwriting breakeven — below it, an underwriting profit. Insurers spread risk through reinsurance: quota share cedes a fixed percentage of every risk, surplus share cedes amounts above a retained line, and catastrophe excess-of-loss attaches above a retention with reinstatement premiums to restore exhausted layers. Insurance-linked securities extend the toolkit with distinct triggers — indemnity (the sponsor's actual loss), parametric (a physical measurement like wind speed), modeled loss, and industry loss warranties keyed to a third-party industry index. Admitted carriers file rates and enjoy guaranty-fund protection; surplus lines carriers write what the admitted market declines, without that safety net.