I had the same concern so I just went ahead and got local POA done. I didn't use an attorney, just the state forms and a notary. I really do everything for my mom--finances, healthcare, etc, and she is in memory care, and so far everyone has been fine with the papers that I got online. I have not done major financial transactions, like selling real estate, but I do oversee all her payments. I also did medical POA at the same time.

If she is still with it mentally, it’s absolutely worth refreshing the POA.

This article covers the issue well:

https://legalclarity.org/does-power-of-attorney-transfer-from-state-to-state/

If you expect to handle a lot of legal and financial paperwork as POA shortly, it's likely worth a call to her attorney (or yours) for a quick clarification on whether the 1990 document is still valid and/or likely to be readily accepted.

My (60M) elderly mother (85F) recently came across Power of Attorney documents that were prepared in 1990 in our home state of AZ that assigned me PoA - both medical and general.

In 2005, she moved East to MD to be closer to me and we had a medical PoA drawn up. She had forgotten about the previous docs.

Now that the earlier documents have been found, is any additional documentation needed to identify me as general PoA?