Your lender may well be right for a second mortgage, and the reason comes down to who actually makes those loans. A deferred balance usually exists because a prior lender agreed at some point to accept less than what was contractually owed and parked the rest. To any new lender reading the file, that history looks like a past workout, a yellow flag they'll want addressed. The rules differ a lot by loan type. On a new first mortgage, a seasoned deferred balance can often be paid off as part of the transaction and the loan still closes. Second mortgages are a different animal. Most seconds aren't sold to Fannie Mae or Freddie Mac (aside from a Freddie Mac pilot program), so they're typically originated by smaller banks and credit unions under their own guidelines, and those lenders can reasonably require the deferment be cleared before they'll lend behind an existing first. One angle worth exploring: whether the proceeds from the new second mortgage itself can pay off the deferred balance at closing. That converts a no-interest deferred amount into interest-bearing debt, a real trade-off, but it may be the only path to getting the second done. Guidelines vary by lender and change over time, so confirm the specifics with whoever is underwriting the file. This is exactly the kind of structuring puzzle we work through in a free Roadmap conversation.