My name was never removed from the deed of our vacation home, what are my rights?

I was divorced in 2008 and in the divorce agreement, my ex was supposed to buy me out of my share of a vacation home we shared with her brother, and pay me my share of that. She has not paid me a penny. She is now in bankruptcy and now I find out the vacation home is in foreclosure. I wrote to the bank explaining that we are divorced and I no longer own rights to that house. The bank informed me that my name was never removed legally. I do not want my name associated with that house, and do not want my credit ruined because of her. I am in NJ but the vacation house is in PA. Is there anything legally I can do? Can I now sue my ex?