A good friend of mine (who lives next door to me) is having a little bit of a tiff with the landlord. Here's the story: He moved in just over 4 months ago - it's a one bedroom apartment with a storage room (that has a gas furnace/hot water boiler) in it. The landlord suggested that he could do whatever he likes with the storage room (ie. use it for storage / a computer room, etc.). My friend's sister moved in with him around 2 1/2 months ago and has been using the storage room as a bedroom (there's a window and adequate space to put a bed / shelf etc.) My friend also had one of his friends staying with him (temporarily, yet he's been there for 2 1/2 months). The landlord visited yesterday and said that he doesn't want my friend's sister staying in the storage room (after my friend purchased all new furniture for her room) and he doesn't want his friend staying there any longer either. He gave my friend until december 1st to get his friend out of the apartment, yet they're increasing the rent for the month of november to compensate for the increased "wear on the apartment". in my opinion, it's a crock! they're paying for utilities themselves and the landlord is just trying to take advantage of them and get his cut. legally - is the landlord allowed to dictate what you use your apartment for? (ie. letting your sister stay in the storage/bed room, letting your friend stay with you). as well - the landlord told him it was his responsibility to purchase CO detectors and pay to have the yearly maintenance done on the gas furnace. anyone have any idea what my friend's rights are in this instance? all comments are appreciated.