Of course you can sue her. Do you have an attorney? For a couple hundred dollars an hour they would probably be happy to sue her for you, for whatever you want.
For those of us who do NOT have the money to hire an attorney, though, you should probably contact your landlord- certified letter- and detail the things that need attention. Your rental has to have utilities and be secure in order to be habitable. You are not certified to detect the presence of black mold. You need an expert. Contact your local health department in this regard. After flipping your breakers on and off and resetting the GFI if there is one, you need to contact the landlord- certified letter- and ask her to fix it. If she refuses, most states have an avenue for which you can fix it and withhold rent. Be VERY CAREFUL that you do this the right way or you can be evicted. Contact your local legal aid office for help.
I'm a property manager