About 9 months ago, I loaned money to a friend's mother to pay off a credit card. At first I transferred the balance onto several of my cards. Then I also gave cash to this friend's mother to pay off the card, because the cash payment would clear a lot faster. The balance on the card was approximately $5,000. I ended up paying twice on this. The mother was given a refund for the over-payment, which was paid back to me. However, the remaining $5,000 was never paid back to me. The mother was attempting to buy a house, and this credit card was damaging her ability to close on the house. I signed a letter stating that the friend, the daughter, did not have to pay the money back. This was so that the lender for the house did not consider it a debt. But, the fact is that I loaned the money to the mother, and not the daughter. A technicality. Do I have a case to sue the mother for the remaining $5,000, since I never signed a letter stating debt forgiven for the mother? It seems like some kind of technicality to me. Thank you.