What is legally needed to be done to claim myself as independent caregiver?

I can only get compensated for my caregiving for my mom via my brother the POA if i am an independent caregiver. I was a home health aid, then CNA in the late 70's. then became a nurse. I have cared for my parents since 2007. Mom is now incompetent with dementia and I have been cut off from reimbursement. I am her 24/7 caregiver and only ask for reasonable and compareable pay for 8hrs shift. I gave up alot to care for them,dad died 2yrs ago. It looks like i have to find another paying job now, that bro is POA in control so i can survive. and mom may have to go into a home agaainst her wishes. I cant take care of both of us without income where do i turn next? I am qualified just dont have the title,,,,