Seller Concessions vs. Repairs in Iowa

Quick Answer
Should you replace a 20-year-old roof before listing, or just offer a $10,000 closing credit? The answer depends entirely on the buyer's loan type.
The Standard "Credit" Strategy
In a vacuum, the smartest financial move for a seller is to offer a financial credit at closing rather than performing the repair themselves.
- Transfer of Liability: If you hire a roofer and the roof leaks a month after closing, the buyer will blame you. If you give them a $10,000 credit, they hire their own roofer, and you are absolved of all liability.
- Time Savings: Finding a reputable contractor, scheduling the work, and waiting for materials can delay closing by four weeks. A credit takes exactly two minutes to draft into an addendum.
- Buyer Choice: The buyer gets to pick the exact shingle color and brand they want.
The FHA/VA TRAP
The "Standard Credit Strategy" completely disintegrates if your buyer is utilizing an FHA (Federal Housing Administration) or VA (Veterans Affairs) loan.
The Uninsurable Asset
Government-backed loans (FHA/VA) have extraordinarily strict Minimum Property Requirements (MPRs). If the home's roof has fewer than 3 years of viable life remaining, or if there is peeling lead-based paint on the siding, the bank will flat-out refuse to fund the loan.
You cannot offer a $10,000 credit for a failing roof on an FHA loan, because the bank requires the roof to be fixed before they wire the money. They will not lend $300,000 on an uninsurable asset.
The "Escrow Holdback" Loophole
If an FHA appraiser flags the roof, and you (the seller) do not have $12,000 in cash to fix it prior to closing, there is one rare loophole: The Escrow Holdback.
The lender agrees to close the sale, but they intercept 1.5x the repair cost (e.g., $18,000) from your seller profits and hold it in a secured escrow account. Immediately after closing, a pre-approved contractor replaces the roof. Once the bank verifies the work is done, the contractor is paid out of the escrow account, and you receive the remaining balance. (Note: Many lenders hate this paperwork and simply refuse to do it).
Conventional Loans
If you want the luxury of simply offering closing credits for major defects, you must instruct your real estate agent to only accept Conventional Loan or Cash offers. Conventional lenders care far less about the physical condition of the property as long as it appraises for the purchase price.