Coinsurance Math, a Pending Sale, and a Mortgagee
Cornerstone Holdings owns a 40-year-old warehouse insured on a replacement cost basis under a policy with an 80% coinsurance clause and a $5,000 deductible per loss. The building's replacement cost is $2,000,000 and Cornerstone carries $1,200,000. In March an electrical fire causes $400,000 in replacement cost damage; the actual cash value of the damaged portion is $300,000, the gap being age-related depreciation. Cornerstone signed a contract to sell the building 12 days before the fire, with closing set for the following month; the deed has not transferred and the policy still names Cornerstone. The buyer has already moved equipment into one bay under an early-occupancy agreement. First Meridian Bank, mortgagee, holds a $650,000 balance and is listed on the policy.
1. Compute what Cornerstone should collect for the building damage. Show each step, and state what Cornerstone itself absorbs.
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Step 1 - Insurance required to avoid the penalty. 0.80 x $2,000,000 = $1,600,000.
Step 2 - Ratio actually carried. $1,200,000 / $1,600,000 = 0.75 (75%).
Step 3 - Apply the penalty to the loss. $400,000 x 0.75 = $300,000.
Step 4 - Subtract the deductible. $300,000 - $5,000 = $295,000 payable.
Step 5 - What Cornerstone absorbs.
- Coinsurance penalty: $400,000 - $300,000 = $100,000
- Deductible: $5,000
- Total retained: $105,000
Two points worth flagging. First, because the policy is replacement cost, the $300,000 ACV figure is irrelevant - no depreciation is taken. Second, some policies apply the deductible to the loss before the coinsurance ratio, which yields $296,250. The difference is small, but read the loss payment condition rather than assume; the order of operations is a policy-language question, not a general rule.
The lesson for the insured is arithmetic, not bad luck: at 75% of the requirement, roughly a quarter of every covered loss comes out of pocket.
2. Does Cornerstone still have an insurable interest given the signed sale contract and the buyer's early occupancy? Can the insurer deny the claim on that basis?
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Insurable interest exists. The test is pecuniary interest at the time of loss. The deed has not transferred, so Cornerstone is still the record owner and still bears the risk of physical loss unless the purchase contract expressly shifted it. Ownership alone is enough.
What to check in the contract. Sale contracts sometimes allocate risk of loss to the buyer at signing. If this one does, Cornerstone may be holding the proceeds for the buyer's benefit - that is a question of who gets the money, not whether coverage exists.
Early occupancy. The buyer's partial occupancy can trigger policy conditions about change of occupancy, vacancy, or increased hazard, particularly if the building is now effectively vacant of Cornerstone's operations. That is the insurer's real argument - not insurable interest. Failure to notify a change in occupancy is a defense the carrier may raise, and it is fact-specific.
Bottom line. Insurable interest is not the weak point. The weak points are (a) undisclosed change of occupancy and (b) which party contractually bears the risk. Both should be answered in writing before the proof of loss is signed.
3. How does the mortgagee clause affect payment? Then show what changes if Cornerstone had carried only $800,000.
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How the mortgagee clause works.
- First Meridian is paid to the extent of its interest - $650,000 - and is normally paid jointly with the insured.
- The mortgagee's rights are not impaired by the insured's acts or neglect. If Cornerstone breached a policy condition, the bank's claim survives; the insurer can still pursue Cornerstone for the resulting loss.
- The mortgagee may pay premium if the insured does not, and the insurer may then add it to the debt.
Recalculation at $800,000 carried.
- Ratio: $800,000 / $1,600,000 = 0.50
- Penalized loss: $400,000 x 0.50 = $200,000
- Less deductible: $195,000 payable
The bank's $650,000 balance exceeds the $195,000 payable. Under the mortgagee clause the bank recovers its interest up to the limit - the coinsurance penalty is a fight between Cornerstone and the insurer, not a defense against the mortgagee. Cornerstone then faces a shortfall on the debt plus a much larger uninsured loss: $205,000 of penalty and the deductible.
Practical takeaway. A mortgagee clause protects the lender, not the borrower. Underinsurance still lands on the insured.