I currently support her, paying for all her needs including 24hr care. My mother and I were very close. Since my brother had her change her trust she has become very paranoid and angry towards me.
The caregiver reports her mood is good until my brother calls then she becomes extremely agitated saying awful thing about me.
I have DPOA.
Her doctors have indeed diagnosed her dementia prior to my brother changing her trust. The problem from what I understand; if she is able to answer 4 questions asked by her lawyer accurately at the time she changes her trust it's valid even if a second later she is completely demented.
.. if you have DPOA, first: is it for healthcare and/or legal matters and second: had your mother been determined to be mentally incompetent for legal and financial and medical matters? If so, I'd be getting to an elder's specialty attorney and see if the change is legal. If she's still legally sound of mind, and changed it so that you no longer are in control, hand the keys over to your brother and walk away. Don't get caught up in being a slave.