If it were me I'd take everything out of that room buy some 4 mil plastic and duct tape double up the plastic and tape it around the door so no air gets in or out. If you have central air I'd get a bunch of rags and shove them down the register to make sure that room gets no air flow whatsoever. Than I'd wash my clothes over and over and if they make me sick trash em, their of no use to you. After a week or two have the manager go in the room by that time the musty smell from the mold should make him sick but make sure you close the door after he goes in the room you don't want that funky smell spreading to the rest of the apartment