Underwriting a seller note where most of the rent roll is housing assistance payments
Take a scenario worth working through: a performing seller-financed note secured by a 6 unit walkup in a mid-size rust belt city, $340k unpaid balance, 8 percent, 20 year amortization with 14 years left, payments of $2,843, no late payments in three years of seasoning, purchase price discussed at 88 of par. Gross rent on the property is $5,650 across six units, with five of the six tenants holding vouchers and the housing authority portion running roughly $4,400 of that total. Debt service coverage looks strong at about 1.4 after the owner's stated expenses, with most of the revenue arriving from a government payer rather than from six individual households. The real question is what that concentration does to the collateral if the borrower stops paying. In a market-rate building, a lender assumes it takes the property back and re-tenants at will. With voucher-heavy income, the assistance payments are typically contractual between the current owner and the housing authority, so a new owner generally has to be approved and sign new contracts of their own, and a failed inspection can abate part of the income at exactly the moment a lender needs it most. That is based on how these programs are generally structured, and it is worth confirming against the specific program materials rather than assuming. So the payer concentration does not straightforwardly make a note safer. It shifts risk from tenant credit into program administration risk, which is a different kind of risk to underwrite, not necessarily a smaller one. A haircut below par to account for that administrative risk is reasonable, but it should be sized against the actual approval and inspection requirements of the specific housing authority rather than applied as a flat discount out of general unease.