How to word this in my contract....?

[Summer Segeleon]

On the property I am buying, there is a mobile home, titled in the name of the PARENTs of my seller. I want to say something like...

Seller forefits any interest he may have in the mobile home situated on the property , will not make any attempt now, or in the future to move it or claim ownership of it, and will not hold buyer responsible for.... ???

FOR WHAT? I just want to make sure that he will never sue me for anything related to it ,its title being in his parents name , etc. How do I word that/