Looking for attorney in PA with short sale experience

I previously posted on this forum about purchasing in a short sale with the OWNER/SELLER acting as agent on the deal. He is licensed but the guy is clearly shady. Would just like to consult with attorney on this process to ensure I am protected. Also want to know if there is any way to protect myself against possible exclusions from title insurance that could bubble up after closing, like mechanic's liens. Not sure if I can ask seller/agent to sign an agreement that he will accept anything that comes back after the fact. But this guys seems to know how to manipulate the system and I want to be protected