Landlords are obligated to provide their tenants with a reasonably safe place to live. In many states, this duty includes installing smoke alarms and sprinklers for fire protection, and peepholes and locks for protection against intruders. What about protection from other tenants? Unlike the trespasser or intruder, the bad tenant, who disturbs or endangers other tenants, has some legal right to be on the property. An attorney with expertise in the area of premises liability law can advise you on your state's law on this subject.