young guns co,handyman

I hired Garydean Mirabal on 1/3/18,we signed a contract for 20,000$ to demolish 1 room and bath, level house, pour concrete frame new bedroom barn and carport, and roof entire house. I gave him 10,000$ up front. Dumpster was delivered and sat in driveway for 2weeks before he showed up. He worked 1 day a week for the demolition,filled dumpster(too small) with half of the trash and left the other half in my yard for 2 weeks until he finally got a guy with a trailer to haul it off. He worked off and on for the next 2.5 months leveling the house(sub standard,house still not level) usually 1 day a week, never a full 8 hour day. He texted me mon 4-23 to inform he wil not complete the job or refund any of the 10,000$. He has only completed 15% of the job and only has approx 50 man hours on the job and approximately 200$ in materials plus dumpster rent. I am in the process of taking legal action.