About Proof of notice
This form is a proof of notice in which the personal representative certifies that a Notice of Informal Appointment of Personal Representative was mailed to listed heirs, devisees, and persons who demanded notice.
When you'd use it: The form is for use when a personal representative has mailed a Notice of Informal Appointment and needs to list the people who received it, per the form's stated rules.
Where to get the official form
The official version of Proof of notice 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:
Download Proof of notice (PDF) →
Source: nmcourts.gov
Link last checked: November 5, 2026
How to file Proof of notice in New Mexico
- Step 1 — Confirm you have the correct formUse Proof of notice (4B-402) when the form is for use when a personal representative has mailed a Notice of Informal Appointment and needs to list the people who received it, per the form's stated rules. 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 notice 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 notice 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).