If you purchased your home recently where escrow was handled through a formal escrow company where you purchased as part of the transaction title insurance and you obtained fee simple absolute from the seller, you are in good shape to defend the claims from the third party asserting that the former owner did not pay the mortgage and the house would be repossessed.You need to immediately retain a ral estate attorney to protect your interests. He or she should immediately put your title insurance company upon written notice of the claim to your title and a written letter be sent to the company claiming an unpaid mortgage or truat deed on your parcel.Good luck.