Is it possible to use power of attorney without permission from an elder who has dementia?

Legal matter: Consult your attorney. In order to get power of attorney in the first place the elder had to give you this voluntarily at some earlier time or have a judge grant it to you after a competency hearing. This would imply that you have permission from either the individual or the state as represented by the judge. It would be illegal for you to forge a power of attorney.

Depends: Poa adresses financial control; often an elder witll designate someone as their poa to assist with finances. Not to be confused with a health care proxy, someone who is deignated to make decisions for one if they can't for serious health decisions. If there is no poa, then a court appointed guardian may need tot determined for the safety of an elder.

It depends: On whether the patient still has the capacity to make their own decisions. In general, geriatric psychiatrists do capacity evaluations, so perhaps it's time to make an appointment.