What Are You Doing at a Coffee Store?

My landlord thinks it's okay to show up whatever he wants, because he thinks my roommates and i are all friends with him. He is shown up to our use our kitchen table as a desk to work on who laying flooring until 11 p m. And worst of all offences, host game nights at our house and then invite us, the people who actually live in the home he is renting out, to join his party early hours before being thrown what? I am extremely non confrontational, and i'm about to explode at this point. Please, jesus help me. Brothers, that's from landlord in la, la land.