Anyone Send A Validation Of Debt Letter

Thank you all for your input. I knew if I posted my situation here I would get some very construtive opinions. Unfortunately, what I (the Dad) did for my daughter has come back to bite me. She moved out with the boyfriend (soon to be fiance) and bought a house and left me with $529 lot rent and $331 loan amount. All this just after I received ~$15,000 surgery bill for my prostatectomy. So now I have a $32K loan which the bank will take a $17K Short Sale but doesn't want to relieve me of the balance. How sad our economy where you can't even get anyone to give an offer on a mobile home for $15-$17K. Thanks again.