Underinsured Warehouse: Coinsurance Math, Indemnity, and the Mortgagee
An independent adjuster is assigned a fire loss at a 40-year-old masonry warehouse in Gastonia. The commercial property policy carries a $900,000 blanket building limit, an 80% coinsurance clause, a $10,000 deductible, and replacement cost settlement on the building. No appraisal is available, but the adjuster's replacement cost estimator puts the building at $1,500,000. The fire caused $300,000 of direct physical damage at replacement cost and $190,000 at actual cash value. A mortgagee is listed on the policy. The insured tells the adjuster he would never have bought more insurance because the bank only required $900,000, and he asks to be paid replacement cost up front, before any repairs are made.
1. Compute the maximum the carrier can pay on the building loss under the repair scenario, and again under the no-repair scenario. Show every step.
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Step 1 - Coinsurance requirement. 80% x replacement cost ($1,500,000) = $1,200,000 required. The limit carried is $900,000.
Step 2 - The ratio applies to the loss. $900,000 / $1,200,000 = 0.75. The insured carried 75% of what the clause requires, so the carrier pays 75 cents per dollar of loss (capped at the limit).
Step 3 - Repair (replacement cost) scenario. $300,000 x 0.75 = $225,000. Less the $10,000 deductible = $215,000, well inside the $900,000 limit.
Step 4 - No-repair (ACV) scenario. Applying the same ratio to the ACV loss: $190,000 x 0.75 = $142,500, less $10,000 = $132,500. Caveat: some forms apply the ratio to the replacement cost loss and then depreciate the result, which produces a different number. Read the actual coinsurance clause before committing to a figure in writing.
Step 5 - Timing. Even in the repair scenario, replacement cost forms typically pay the ACV portion first and withhold recoverable depreciation until repairs are complete and documented. The insured's request for full RC up front should be declined with a written explanation of the holdback.
2. The insured argues that his limit was set by the lender's requirement, so the coinsurance penalty should not apply. Evaluate that argument and state what the adjuster should and should not do.
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The argument fails on three grounds. First, coinsurance is a contractual promise about the ratio of insurance carried to the value of the property; a lender's collateral requirement is not a policy term and does not amend the declarations. Second, the insured - not the bank - selects both the limit and the coinsurance percentage, and the declarations page shows what he bought. Third, the adjuster has no authority to waive a policy condition. An oral 'we'll waive the penalty' creates exposure for the carrier and a licensing problem for the adjuster; waiver and estoppel arguments belong to the carrier and its counsel after a coverage review.
What the adjuster should do: preserve the estimator and its inputs, quote the insured's statement verbatim in the file, and explain the penalty in writing with the arithmetic shown line by line. Large coinsurance penalties are a leading source of Department of Insurance complaints and E&O claims, so the explanation should be plain-language and the file should show delivery. Any request for relief goes to a supervisor as a coverage question, not to the adjuster as a courtesy.
3. How should payment be structured given the mortgagee, and what must the adjuster confirm before issuing anything?
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The mortgagee is a loss payee entitled to payment to the extent of its interest, but it takes subject to the same policy terms - including coinsurance. The $215,000 does not grow because a bank is named.
Practical sequence:
- Confirm the mortgagee clause language and the current loan balance, ideally with a signed statement from the lender, so the carrier does not pay the same interest twice.
- Issue the payment with the names and endorsement the clause requires (many clauses permit payment to the mortgagee to the extent of its interest and to the insured for the remainder, with the loss proceeds often held in escrow for repairs).
- Notify the mortgagee of any partial denial or coinsurance reduction. Under most mortgage clauses the mortgagee's rights are separate from the insured's acts, so a mortgagee can still claim even where the insured's conduct would bar the insured.
- Confirm the recoverable depreciation holdback applies to the whole loss, not just the insured's share, and document how the holdback will be released when the lender's inspector and the carrier both sign off on completed repairs.