Your sister is very lucky to have you. I have four siblings and all are diagnosed BP, plus a nephew. Maybe for the time being you can help her work on the symptoms and behaviors? Maybe help develop a support system so that her actions don't cause her to lose her kids? That is so sad about her insurance! One of the hardest things to cope with is having your life falling apart all around you when the only thing standing between you and the help you need is mindless bureaucracy. I hope things work out.