Me and two siblings took my mom to have POA and MPOA papers drawn up since she was in early stages of dementia. It was suppose to be my brother, then my sister if he couldn't do it, and then another sibling if she couldn't do it. Come to find it that the papers weren't drawn up that way. The attorney named only my sister as POA and my brighter as MPOA. What we are hearing from the sister is that one person is not both. Attorney won't talk to anyone else because the sister is POA. Nown there is no one else named as backup POA and things appear suspicious. Why can't one person be both?
Attorney can't talk to you about it, but what does mom say, I expect she is the one who made this choice? It is unfortunate that the lawyer did not listen to the family's (reasonable) requests but instead pushed forward a different agenda, I have seen this happen before. On the one hand they need to be sure the Grantor is not being unduly influenced by the family, but that is no reason to disregard what has been asked for by the family. I know of one person who wanted every child named as poa so "no one would feel left out", the family finally convinced her that was ridiculous as one said no way and others didn't live near, but when the documents were ready to be signed guess what....
If your mother wanted the authorities to be granted changed to what the documents actually provide, that's her choice. If it wasn't, you shouldn't be paying for documents that didn't meet your mother's requirements.
If the attorney won't speak with you, and your mother is still cognizant to make her own decisions, start documenting, first with a letter to the attorney signed by your mother addressing the erroneous changes made.
Second, if the attorney fails to respond, and you can confirm with your mother and siblings that the documents do not reflect your mother's intent, contact the state bar association to file a grievance against the attorney.
However, who was with your mother when she signed? Did anyone read the documents before signing? This is a tactic some attorneys use, sometimes legitimate b/c the documents are complex and not everyone will understand, so attorneys will verbally or in writing summarize key points.
However, I once worked for an attorney who was so offended by a daughter who wanted to take the documents home for her and her mother to read that there was actually a blow-up and a lot of shouting and yelling right in the office. (He was a sole practitioner; this would NOT have happened in a law firm with other attorneys present.)
As to question of one proxy for both purposes, that's certainly possible. Ours are drafted that way, for good reason. My sister had the medical experience and I had the legal, but we had no problem pooling our knowledge to make the best decision for our father (until my sister died).
Personally, unless the siblings aren't getting along, I think joint proxies are more reasonable and practical.
My mom's POA's are setup so POA can pay herself what is reasonable and customary, so it is permitted if stipulated in the document. Whatever reasonable and customary means! Leaves much to intrepretation to say nothing of greed.