talk to the courts then. Its breaking and entering if they do not have an emergency to be in there.
I for one if someone just walked into my house un announced and i dont know who they are,bet your ass they will be staring at the end of a barrel.
Re read the law when it comes to Land Lords. Emergencies are the only exception they have the right to walk into someones house. Just cause they OWN that property dont give them the legal right to walk in. Not without eviction notice or warrant accompanied by Police to escort them in.