OP doesn't doesn't even have to act confused! He answered the phone late at night because it was the landlord's number. He told her he couldn't do anything for her and went back to bed. She called again later that night for the same issue. That's harassment.  He needs to lay down some rules with the landlady. The daughter can't contact him unless it's on her behalf for rent or other tenant-related issues during regular business hours (or within a certain timeframe). If there's an emergency that absolutely cannot wait until the morning, the emergency services need to be called first unless it's his life that's in danger.  He's not tech support. He's a tenant. And the landlord can get in a lot of trouble if she's violating his rights as a tenant.