My late father would employ homeless people to rebuild wrecked motor homes. And amazingly enough, this tactic tended to work fairly well.
They weren’t allowed inside our house, except certain hours of the day in the evening. They were even welcome to drink some beer with us and shoot the shit during the later evening hours, just as long as they kept up work on the wrecked motorhome, which is where they slept.
I think they lived there while repairing it for like 6 months, and they were generally honest and legit. Never once stole a thing, they were just glad to have a place to stay during that time.