We have been renting a home for 2 yrs now. My husband asked our landlord about fixing the sliding glass door because it's difficult to open and gets stuck. It's becoming more & more difficult to open and one time when it stopped abruptly I hurt my forearm which is now swollen. We told him about it a month ago and he said he would look into it, but now he's not interested and said it wasn't that way before and couldn't we just put wax on the bottom. He recently gave us 60 day's notice because he decided to sell his home and now he's not being cooperative at all. Should he fix it, especially since I already hurt my arm? Or do we have to fix it?