Hey Monkey,
I know you've petitioned or are petitioning to bring your sister home with you and/or have legal guardianship, but where does that stand? And what about this facility do you feel is unfair? If you could elaborate, I'd be more than happy to share my opinion/advice.
I don't know the laws, from state to state, so I'm not sure I could help in that area. But I can give you some ideas about how you can be a good advocate for her if I know more about how your state does things. If you're not sure yourself, I would contact the county or state level of the health department and find out the details of the patient's or, as they say in my state now, consumer's bill of rights. They should be able to provide you with this info.
Please check into it and let me know, OK? Take care, cmpgirl