My Stepson borrowed money from me and has paid some of it back. However he has not paaid anything in the past 6 months. He did sign an agreement to pay back the loan. He has since moved out of the state and will not contact us. We only have a Post Office box address for him and an Email address. He will not answer any letters or Emails we send him. What can I do to collect the rest of the money he owes us. Can I file a 1099c against him?