Let me get this straight. You have a daughter who has a mental illness, which you don't seem to know what it is since you didn't mention it, and you moved out of the house because of the way she lives her life. WOW! What a self-centered uncaring person you are. If your daughter does have a mental illness it's like any other illness and she needs your support as a mother.
Your daughter coming back to live with you because she has a mental illness does not make her a moocher, it means she's looking for help, support, and guidance. Now, I'm not saying her being untidy is acceptable, this is probably something that needs to be addressed but, for a mother to leave her daughter when she is ill, I really don't know what to say....
I have to say I disagree with James on this I dont think just because your daughter has a mental illness that gives her the right to take over your house. Having a mental illness is not an excuse to drop out of college and decide that she isnt going to do anything but have your husband wait on her. I would tell her to get a job and get out!!