in Feb of last year i entered into a written contract with bill Burch to purchase the home in which i currently live by way of owner financing . the contract states the i am buying the home for 49000 w / interest for a total payout of 54000 . my payments are 450 a month for ten years and i have not defaulted or been late and have paid faithfully for a year . well he died and his son ( Michael Burch ) took over and is trying to sell the house out from under me . is this legal .