My question involves collection proceedings in the State of: DC
Basically, I loaned a person $20k for his refinancing, and he wrote me a note saying he would pay back within three years. (Before this, I remember I wrote a note form him saying I loan him as a gift so that he won’t pay tax). We also agreed verbally that he would pay me back every month with amount $556 per month. However, he hasn't made any payment yet. I also tried to email, call or text him and ask him to pay back, but he never answered phone. However he replied text message saying that he would be out of town for a while. I left him a voice message and tell him I will stop by to discuss with him about this, and I saw he was at home (instead of "out of town"). Apparently, he doesn't have any intention to pay back, so I am wondering if there is anything I can do.
I also have the cashier's check from my bank. It can also be traced through the bank. The cashier's check has his name on it, with the amount of $20,000 dated on 6/18/2013.
Please let me know what I should do at this moment if I want to get my money back.

