You're dumb as fuck. I've never lost in court when filing against someone for rent and possession. I always have a contract, therefore have never lost.
On top of that, I've only used a lawyer one time to deal with a deadbeat tenant, and that was when I was too busy to fuck with it.
Unlike you, I am smart enough to file my own paperwork with the court and deal with it myself.
I hope this guy goes to court and tries to stand in front of a judge and explain this story.. At that point, the judge will ask to see a contract. When he cannot produce one, the judge will dismiss the case.
End of story.