A year after having papers drawn & signed by her attorney, someone else brought a notary and became POA is this legal?

If Loretta's medical records show cognitive issues or dementia diagnosis that pre-dates the new PoA, you may have a case. Who is the new PoA? How do you know this change occurred?

Short answer, I would say no. I also understand that the law differs in some states, so research would have to be done in your particular state.

My understanding: Assuming that the person is mentally competent, they can change their mind and name a new POA by revoking the original POA. This means pulling all filed copies of POAs from whereever they are placed: attorney and doctors offices, hospitals, NHs, banks... When a POA form is placed somewhere, it should be recorded on the POA paperwork with the date, time and initials of the principal. It is not a casual process.You should have received a letter of revocation. If you think that the person was not of sound mind, which it sounds like you do, then reporting the issue to the Agency on Aging in your state would be the first step.

I wonder if the original attorney is around to consult with? Is the attorney still on retainer or has that expired? If still on retainer, you should be able to contact them and get an answer. I hope that this helps and I will be following to see if you get differing viewpoints. Good luck. I hope that you are able to straighten it out for Loretta.