My father passed away in December 1999. Two years before he passed away he agreed to loan his niece, my cousin, $30,000.00 so she could use the money as a down payment for her house in Big Bear, California. My father used his house as collateral for the loan. The verbal agreement was that my cousin would make payments on the loan (the payments were sent to her from the bank) and pay the amount back to my father, in full, in two years time. The same month that my father passed away my cousin stopped making payments on the loan. We did not find out about this until the bank sent foreclosure notices on the house. We have since sold the house and had to pay off her loan. The same week that my father passed away she told my family she would try to find other arrangements to pay off the loan. We have not heard from her or seen any money at all. What legal standing do we have to sue her for the money?