If it is an assault issue, I have experienced the Police refusing to take a complaint once they find out it is a Landlord /Tenant relationship.
The only power you have is screen your tenants very well going in because once they are in, you as a landlord have no right to compain, it is their home.
Kathryn Lilly, Broker
Realty on the Greene, LLC
Tenants can be cited for: , trash, insect/ rodent infestation, Apartment maintenance, not allowing access for repairs and any damage to structural elements.