The last job that Mom had as a nurse was in a behavioral health unit. She dealt with this illness quite a bit. These people are truly sick, they are not the ones that we would consider lacking in manners. Mom said they were the most difficult cases to deal with, because if they heard someone else say that someone had cancer, suddenly they thought they had it and they thought they were going to die. There are treatment places available, but as you said, the family knows she is sick, but can't force her into treatment. Munchausen syndrome is a treatable mental disorder, but the family is right. They can't force her. Now it sounds like a judge could commit her if she is intentionally harming herself. In TX, this is the case. I don't know about the laws in your state. They could try a different approach to getting her to the behavioral health unit. Use what she says to their advantage, agree and sympathise, and she might think "wow I really need help!". It has worked before in several cases. Just change the way you talk to them and offer lots of sympathy, and tell them I never knew you felt so bad, let's sit downand discuss it. It takes time and patience, but it is for the good of their sister.