My spouse & I legally separated 10 years ago. All matters concerning child support, education, residence status have all been honored except for one thing. My ex bought me out of the house but still owed me $30k (+ 3% per annum) to be paid over the 10 years or in a balloon payment at the date 10 years from the signing. It's now that time, the house is for sale (no bites) and she says she has no money to pay me. What do I have to do to get the money owed me?