text: if your apt, building has mice,who's responsible for getting rid of them?   the landlord is responsible. if repairs are made properly,then the mice can't get in. if he refuses to do his job,or complains to you about housekeeping,or what-have-you,then file a complaint with the board of health. trust me,he'll start fixing things,and be sure to tell the board of health to make a stipulation,that after repairs are done,your landlord can not increase your rent.