Answered on Feb 13th, 2017 at 7:09 AM
Having a family member with dimished abiltiy to handle their own affairs is really stressful. I know because I've dealt with that personally. If your Mom can make her own decisions, she can work with the facility to be discharged if that's appropriate for her care. She can authorize the facility to discuss these matters with you. She can revoke the POA with your brother -- preferably in writing but it would be best if she were do have a new POA in place first. It sounds like you have legal, social and care questions. An elder law attorney in your area can be of some help and perhaps point you in the direction of others who can assist with non-legal matters.
I recommend that you seek out a local attorney for a more in depth discussion of the matter. I do not recommend that you take any action steps without such a consult. Act quickly because by waiting, you may lose certain rights and remedies available to you.