Seller financing as a second mortgage

[Riaz Mohamed]

I have a potential buyer who is willing to pay the asking price for my house, however they are approved to get $30k short of asking price. Can I give a sellers finance as a second mortgage? I’m not sure if that is doable since a bank is involved. Even if the bank agrees, what will be my hold on the buyer to make sure that they pay it off? Please let me know if you have any suggestions.