We have some resident PI's on the board, hit a few of them up. Wouldn't cost much for some basic information. Whatever name he used and his known addresses are great starting points. You made payment, I assume by check? Check was cashed somewhere, likely a bank.....bingo! All the information you could ever want, but not accessable by the layman. You can answer a few basic questions you asked yourself by going down to the county clerks/city admin offices are running the indexes for his company name, alias name under Assumed Names/DBA's. This will give you names and addresses, cross check the same info in the indexes. That may give you more. As long as you are there, check the othe indexes. You are in TX, get somebody to run his info/TDL through Zebec.
What city area we talking about here anyway???