You can go to the hall of records and see if there is a default or forclosure on this property! It is public record! Then go from there! Depending on what state you live in, I believe once the house is in forclosure your contract with the ex-owner is void! They can't charge you for something they don't own! Try talking to someone legal to make sure though. I was in the same situation as you and I did the same thing you are doing and the ex-owners couldn't come after me! I was rent free and Hud also payed me a few thousand to move out 9 months later!
