Motivated seller can't afford probate, how to structure a deal?

[Nolan M.]

So I found a lady who wants to sell her dad's house but she can't afford the 2k to pay a probate attorney to get the house put in her name. My solution is to have my brother, who is an attorney, do the probate work for her and once its in her name I'll buy the house from her. My concern and question is how to ensure that she sells me the house after probate is complete. What would keep her from walking away after the house is in her name leaving me stuck to compensate my brother and no deal for me? I've read other forums her on BP about sellers not showing up to sign at closing and the only recourse is to sue, which means more money for the lawyers and less for me, lol. Anyone have experience with a similar situation?