My mom was officially diagnosed with dementia on June 24, 2015. My brother took her to an attorney and got POA on August 19, 2015. He took her to get a Life Estate Deed For both of her homes on 8/24/2015. He also put himself and his wife on her bank account and took out $25,000. I retired one year ago and am finding out everything he has done. He also has 4 credit cards he is using that are in her name. There is approximately $21,000 in credit card debt. Some charges he puts on there are hers and he has been paying the minimum due for the past year. However, there are charges for plane tickets, kids soccer camp and his bills such as a $500 + cell phone bill. These took place about 3-4 years ago. He was reported to adult protective services for taking money from her account however mom did not want to press charges. Would a judge revoke his POA if I take him to court or is my mom screwed over by him?