If they want too much money as a deposit, thats a danger sign. You can get his attention by working with the local police, the DA or the court system. I would not mess with this individual, no matter how good his work is, if what you say is true. Most of the time it is connected to other problems, that can never be fixed. I rent out property, and thats a game that takes me and the ones that cant behave to see the JUDGE. I have had very good results.