For the past two months we have not been able to use my backyard or park in our driveway. He hired a contractor to work on the apartment and he made a mess of the backyard with rotting wood, nails and it is absolutely unsafe. This 4th of July we were going to have a cookout, but he told us due to the condition we can not. He also has a boat which he parks in the driveway and now his family has been parking in the driveway every weekend and i mean his whole family. Our lease clearly states backyard usage and 1 off street parking space. Is there anything we can do? Please help