Emotional abusive roommate demands I pay for his expensive bills, overdue from months before I arrived.?

I think it would be wise to start videotaping the daily condition of the apartment and possibly taping conversations. Sounds like you may need a day in court with these jerks! You will absolutely need hard evidence against them. In the mean time if you are a person who prays, get on your knees. See if a relative or friend will let you stay with them until you can find a better place. This place is not even fit for the rat that's been taking up residence there. Don't worry, things will work out for you! People do reap what they so, so these monkeys have a funky white harvest coming their way. Trust me, I've seen God's wrath on quite a few of my enemies! It ain't gonna be pretty for em! God has a mysterious way of turning things around so that the situation works in the favor of the abused instead of the abuser!I'll pray for you! I hope this is helpful and comforting to you!