My father's wife passed away several years algo and he went to live with his step daughter in New York. Once his Alzheimer's progressed she put him in a home in Florida. My sister and I asked her to send him to us in puerto Rico but since she has a durable power of attorney she decided to send him to a home in Florida even though my sister and I were willing to have him here in Puerto Rico . After a few months he was evicted from the home because of aggressive behavior. She then brought him to puerto Rico and deposited him in a home and left. She informed me after she left of his new residence via text message. I have been his primary care giver since,about 6 months. My father is a retired military officer and also retried fromt he federal goverment. She pays for the home and has sent me. A total of $300 in that time. Is there any way to revoke her power of atterny? I feel that she gas abandoned him and is using his money for her enjoyment.