How to structure a seller finance deal with a man in his late 70s

[Ryan Gartley]

I am trying to set up a seller financed deal with a man that has a triplex and he is in his late 70s. His wife and him are not in great health. What happens when the inevitable happens (they pass) and the house isn't paid off. He doesn't have any children. Should I avoid this deal. Im new to this and need some advice. Btw the building needs a good bit of rehab and wont pass bank approval. He doesn't want to fix the issues. I can give more details. Thanks