My son had a DUI twenty years ago. Since that one time, he has lived a clean, problem free life. He was initially denied a LTC based on the DUI. He appealed, did the paperwork, and appeared before a board. He did it himself...no lawyer involved. He had been quoted $3500 from the lawyer with no guarantee. His appeal was granted, and he currently holds an LTC. If you have not had any problems (legal) since that one DUI, etc. you have a chance.