Contact the health department ASAP. And in all honesty, I would start looking for another place to live. Black toxic mold is seriously dangerous. My youth pastor's wife back from when I was in high school passed away from lymphoma cancer last March. She was only 38. They have pretty much traced the cause of her cancer back to the black mold they had all in their house. Not trying to scare you, but you should know that mold is nothing to mess around with.