I took my wife's GMC Acadia to a transmission shop last year in September. He brought the car back to me and charged $1700 for rebuilding the transmission. Two days later my wife was stranded with the same problem. He took it back and returned it a month later and the trans self destructed in a week. He took it back and he still has it to this day. When I call, if he answers, he is always going to do something or do this or do that but I still have no car. He is rarely open supposedly due to health problems. I finally told him that if I didn't get my car back on or before the year anniversary that I originally gave it too him that I would start legal proceedings. What is the best way to go about it.