My mother's attorney who issued these documents says I have what I need to take care of her. However, another attorney reviewed this for me and says no that it needs to be revised that it specifically prohibits an agent from entering into a personal service contract unless it was authorized in the document, and the document does not authorize me to enter into or sign contracts on her behalf.
If elders are incompetent most care facilities will admit based on a letter from the treating doc stating that the elders can no longer care for themselves.
I placed both parents in assisted living in 2017. I had a POA but the administration hardly gave it a glance, just copied it for the file. I also had a letter from their doc.
When it’s clear to all involved that the elder in question can not care for themselves or manage their affairs the legalities of placement is usually not a problem.
My folks did not have the wherewithal to challenge my decision to put them in care. I suspect your mother does not either. If she’s still with it and can challenge you, well, that could be another story.
Your mother has Alzheimer's and it is highly unlikely that her attorney will find her competent to alter the POA now. Keep in mind that the second attorney may be fishing for some billable hours. I'm curious as to why you consulted with another attorney. Do you not trust her attorney?
If I found myself in your position, I would act based on the old adage that it is better to ask for forgiveness than permission.