My mother has Alzheimer I have three sister me and one outher sister have a GENERAL POWER ATTORNEY (DURABLE)

You should seek out an elder law attorney in your area.  It sounds as if you need to file for guardianship. Guardianship proceedings begin by filing a Petition of Incapacity. If it is determined that your mother is incapacitated and the Durable Power of Attorney is being used to financially exploit your mother, the Court will appoint a guardian to safeguard your mother's property. You may also want to contact the Department of Elder Affairs Abuse hotline at 1-800-96-ABUSE (1-800-962-2873). Press 2 to report suspected abuse, neglect or exploitation of the elderly or a vulnerable adult. This toll free number is available 24/7.