Quote from @Brandon Morgan: If you screw up a deal with a friend or relative, you will lose money and the relationship.

Suggest you go to their site, there is approx 7 videos for you to watch to see if you want to go to the next step. 

Either one of these people - the buyer, or the seller, can screw you, intentionally or unintentionally in years to come. 

We did give 50k deposit up front which he says he will use towards finishing up.

But, the self-sufficiency test for FHA loans can be really difficult in SF, meaning that the market rent from units you will not occupy must be sufficient to pay for the mortgage payment. 

A 5000+ sqf Triplex located in the Tremont Area of Cleveland.

I'd check local STR FB groups and see if you have a local Real Estate Club.You can offer your services there, maybe for free in exchange for the experience.

As far as benefit to the seller goes, @Matthew Paul I think you are probably right on the money and regardless of whether they would have preferred to stay in this house rather than move, it is likely providing them some excellent cash flow; and I'd be hard-pressed to come up with a deal that serves both parties better than the current situation. 

I just checked all my properties and they are still showing up in chronological order.

Hi @Akeeve Foreman, welcome to the group!