how do I get the title ????

I do body and paint in cars like a year ago a guy came over and drop a truck to have some work done on it I was going to prime it and fix it up a bit was going to charge him $700 but is being sitting in my back yard for 1 year being calling him and he say he will come but he never does how can I get the truck to my name and get the title so I can sell it get it out of my yard and get the money I invest in labor and material, we didn't sign any contract or anything but have all the txt messages that we have being sending each other since last year when I told him his truck was ready how can I legally get the title so I can get my money back,Im in houston tx Harry's county if it help