[quote=6packscaredy]Could you have a separate contract to be paid a monthly fee for the loan, at some discount to the actual savings?[/quote]
I suppose you could house carry some sort of contract but there’s nothing backing it. If the person chooses not to pay you don’t have equity to go after. It also has to come out of the buyers income so it might be hard to find the buyer where the assumable loan is 25% of their gross and they have another 5% to pay you.