Q. I let a friend borrow the extra key to my apartment and he lost it. Can I require my landlord to change my locks?
A. Under the law, a landlord has an obligation to change the locks at his expense when a new tenant moves in. After that time, the landlord must change the locks whenever the tenant requests, as often as the tenant wants. The tenant, however, must pay the costs of installing the new locks. In other words, you can require your landlord to change your locks; however, you must pay the costs.