I recently posted a question concerning my mother's rights in the decision about where she will be moving now that she must sell her house to have money for living expenses. One of my brothers is the POA for finances and one is the POA for medical and my mother is worried that they will make her go somewhere she doesn't want to go. She has expressed great interest in moving where I am and I have located a great Assisted Care Living Facility here but my brothers continue to act like the move is their choice and not hers. My mother lives in So California by the way and so she has a California Advance Care Directive naming my brother as POA of her health care. If my mother has not been declared incompetent does she still have the legal right to determine where she moves?
https://www.agingcare.com/questions/brother-have-final-say-where-mom-goes-186676.htm
Some questions were asked that posters felt relevant to your query, but not answered. Others offered opinions. But it seems that your question remains unanswered from your perspective.
I'm thinking that at this point it might be better to discuss this with an elder law attorney who can review the documents she signed and respond to your concern.
From your description, one of the documents is a California form; unless we can see it and review the terms, it's difficult to opine on the extent of its granted powers.
Tell your brother his britches are too big.
So, talk to your brothers about what their plans are in a neutral, non confrontational way. As our parents age, they need to be very close, geographically to one child who can get there quickly in case of emergency. Don't let egos get in the way here.
Or, she simply instructs your brother with financial poa that she is moving to her chosen poa on such and such date.
If mom is competent to make this decision, there should not be such drama.