About Proof of Authority
A domiciliary foreign personal representative establishes authority to exercise powers of a local personal representative for an estate with assets in New Mexico.
When you'd use it: When a foreign personal representative (appointed outside New Mexico) needs to prove authority and manage estate assets located in New Mexico under Rule 1B-201 NMRA.
Where to get the official form
The official version of Proof of Authority is published as a PDF by the New Mexico courts. We checked this link and it resolved to a form on an official court or government website — always download the current version directly from the source rather than a third-party copy:
Verified official PDF
Download Proof of Authority (PDF) →
Source: sandovalcountynm.gov
Link last checked: May 31, 2026
How to file Proof of Authority in New Mexico
- Step 1 — Confirm you have the correct formUse Proof of Authority (4B-801) when when a foreign personal representative (appointed outside New Mexico) needs to prove authority and manage estate assets located in New Mexico under Rule 1B-201 NMRA. Double-check it's the right form for your situation — New Mexico probate forms are revised periodically, so verify the name and number against your court's current form list before you start.
- Step 2 — Complete every required fieldFill out Proof of Authority carefully and review it for errors before filing. Probate cases can already take months — a small mistake on the form can set your timeline back further.
- Step 3 — Get it notarized or witnessed if requiredSome probate forms must be signed in front of a notary or witnesses. Check the instructions on the form itself, and arrange notarization before you file if it's required.
- Step 4 — File it with the correct courtSubmit Proof of Authority to the probate court or county clerk handling the estate — usually in the New Mexico county where the deceased lived. Ask the clerk how they prefer to receive filings (in person, by mail, or e-filing).