It should but all you need is 1 person to be difficult and that ends that concept.
I will say this, if this is going to take a bit of time to happen, right now if there is a bank who has branches in both States - and is NOT Bank of America - id suggest that you ask mom to mom move her all banking including her SSA deposits and any other retirements to this bank. And then you in your State open an account there as well. Then when she moves she adds you as a signature to the account, makes it POD/TOD and you get it so that you can link them, and look at both to monitor them. She remains the owner of hers totally too. As you do with yours. But will just be way easier just to change addresses within the same banking system.
POAs carry over. Some states prefer that you get your original certified in the old state and filed in the new state probate, which I had to do in SC. The POA was recorded and probate returned the origional. If you are a court appointed guardian or conservator, you will file annual reports to the old state unless you re apply to the new state that will reciprocate. When in doubt, see an elder attorney
I found this from the American Bar Association https://www.americanbar.org/groups/real_property_trust_estate/resources/estate_planning/power_of_attorney/
"Generally, a power of attorney that is valid when you sign it will remain valid even if you change your state of residence. Although it should not be necessary to sign a new power of attorney merely because you have moved to a new state, it is a good idea to take the opportunity to update your power of attorney. The update ideally should be part of a review and update of your overall estate plan to be sure that nuances of the new state law (and any other changes in circumstances that have occurred since your existing documents were signed) are addressed."
I will say this, if this is going to take a bit of time to happen, right now if there is a bank who has branches in both States - and is NOT Bank of America - id suggest that you ask mom to mom move her all banking including her SSA deposits and any other retirements to this bank. And then you in your State open an account there as well. Then when she moves she adds you as a signature to the account, makes it POD/TOD and you get it so that you can link them, and look at both to monitor them. She remains the owner of hers totally too. As you do with yours. But will just be way easier just to change addresses within the same banking system.
https://www.americanbar.org/groups/real_property_trust_estate/resources/estate_planning/power_of_attorney/
"Generally, a power of attorney that is valid when you sign it will remain valid even if you change your state of residence. Although it should not be necessary to sign a new power of attorney merely because you have moved to a new state, it is a good idea to take the opportunity to update your power of attorney. The update ideally should be part of a review and update of your overall estate plan to be sure that nuances of the new state law (and any other changes in circumstances that have occurred since your existing documents were signed) are addressed."