Who can sign assisted living paperwork if a parent has dementia?
If your parent still has legal capacity, they sign for themselves — a dementia diagnosis alone doesn't remove that right. Once they can no longer understand what they're signing, the person named in their durable power of attorney (POA) signs on their behalf. If no POA exists and capacity is gone, an Arizona court must appoint a guardian or conservator — a slower, costlier process families should avoid by getting documents in place early.
The documents that matter in Arizona:
- A durable financial power of attorney lets the named agent sign residency agreements and manage payment.
- A health care power of attorney authorizes care decisions, including consent to the community's service plan.
- A mental health care power of attorney is an Arizona-specific document some memory care communities require, because it authorizes placement in a secured behavioral-health setting if ever needed.
Communities will ask for copies of these documents at move-in — bring them to tours.
If there's no POA and your parent can no longer sign: Arizona requires guardianship (for care decisions) or conservatorship (for finances) through the probate court. It typically takes weeks to months and involves attorney fees, a court investigator, and ongoing reporting. Emergency temporary guardianship exists for urgent situations, but it's still a court process.
The takeaway: if your parent has early-stage dementia and can still understand documents, see an elder law attorney now. A capacity window that closes cannot be reopened.
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