The first issue is "was it a gift or a contract". Unless you have a written or oral agreement about repayment, it was a gift and no recovery. Second, if it is an oral agreement, you statute of limitations begins to run from the date of breach of contract and is only two years (four years for a written contract). If it is an oral contract, was it ever confirmed in writing? Were there any witnesses to your agreement. If not, it becomes a "he said, she said", which is very difficult to win at trial.
Answered on Aug 21st, 2012 at 12:10 PM