How to deal with the tenant's property?

First of all, the contract you signed didn't take effect, which can be understood as "a strange man left his bag at your home". You can call the police for consultation because it doesn't cost money. If the police don't know, consult a lawyer. In short, the longer this bag is kept, the more troublesome it will be! When the time comes, the boy will take the bag and say that the money in the bag is gone.