Infestation

We are currently infested with mice in our entire building. It is horrible and unsanitary!!! We have to wipe and clean the counters and sweep and mop every morning and night to clean up the mice droppings. When we talked to the office they told us we was responsible for the expense of the entire building being exterminated. Not just our unit!!! The whole building. We also have black mold growing all over inside the walls, under cabinets. Ceiling in the bathroom is rotting away from the moisture.