Power of Attorney

my father assigned my sister power of attorney in 2014 when he was admitted to a care center. my father passed away in may 2017. it has come to my attention that my sister, the agent for my father, has made numerous cash withdrawals from his checking account and has made several purchases for herself. is there a way to confront this power of attorney abuse?

I am single with no kids or siblings or close relatives. Ten years ago I moved across the country to live with my parents and help them cope with dementia. That has been a full-time job. Dad died 4 years ago and Mom is in hospice care at home; I remain primary caregiver. I am trying to get my legal house in order (trust, DPOA, HCPOA, etc.) but over the last ten years I've lost touch with old friends on the other side of the country. So, at this time, I have no one in my life to appoint as trustee, DPoA, Health Surrogate, Personal Rep, etc. I can't be the only one in this awkward spot. So, what do you recommend people in my situation do regarding these matters?

Can I be refunded personal money that I spent to pay bills while acting as power of attorney?

We live in Alabama, my Grandmother / the ward, is in a facility in Virginia. My uncle has/had legal custody/power of attorney. He has moved to Texas and has left her in Virginia? ? I would like to get her transferred to a facility in Alabama, where she lived, and will be buried at, how can I get the athourity to get her transfered legally?

What type power of attorney do I need in order for someone else have access to my checking account and pay my federal income tax?