My sister and I have POA of attorney for my mom who has dementia. We have a brother as well who does not speak to my mom. My sister is not trustworthy and I am considering filing for Conservatorship because she has no idea what she is doing with her finances, etc. I have been told that this is a big process, mom has to be subpenoed and my brother and sister have to be notified. I feel this is the best thing to do. Thoughts?