New Mexico Probate Form 4B-901

Application for informal appointment of special administrator

This page is for educational purposes only and is not legal advice. Forms and requirements change frequently — verify the current version with your local probate court or an attorney.

Last updated: November 5, 2026

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About Application for informal appointment of special administrator

This form is an application asking the probate court to informally appoint a special administrator to collect, manage, preserve, and account for a decedent's estate assets.

When you'd use it: The form states it is for use when a special administrator is necessary before a general personal representative is appointed to protect the decedent's estate.

Where to get the official form

The official version of Application for informal appointment of special administrator 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 Application for informal appointment of special administrator (PDF) →

Source: nmcourts.gov

Link last checked: November 5, 2026

How to file Application for informal appointment of special administrator in New Mexico

  1. Step 1 — Confirm you have the correct formUse Application for informal appointment of special administrator (4B-901) when the form states it is for use when a special administrator is necessary before a general personal representative is appointed to protect the decedent's estate. 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.
  2. Step 2 — Complete every required fieldFill out Application for informal appointment of special administrator 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.
  3. 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.
  4. Step 4 — File it with the correct courtSubmit Application for informal appointment of special administrator 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).

Working through the Application for informal appointment of special administrator? SwiftProbate builds a personalized, step-by-step checklist for settling the estate — so you know which forms to file, in what order, and by when.

Get help with this form

Probate in New Mexico

See the full New Mexico probate guide for filing deadlines, small-estate options, timelines, costs, and county courthouse details.

Read the New Mexico probate guide →

Frequently Asked Questions

What is Application for informal appointment of special administrator (4B-901)?
This form is an application asking the probate court to informally appoint a special administrator to collect, manage, preserve, and account for a decedent's estate assets. You'd typically use it when the form states it is for use when a special administrator is necessary before a general personal representative is appointed to protect the decedent's estate.
Where do I file Application for informal appointment of special administrator in New Mexico?
Probate forms are filed with the probate court or county clerk in the New Mexico county where the deceased person lived. Our New Mexico probate guide can help you find the right courthouse, filing fees, and local requirements.
Do I need a lawyer to complete Application for informal appointment of special administrator?
Many people complete probate forms themselves, especially for smaller or uncontested estates. Complex estates may benefit from professional advice. SwiftProbate is an informational tool that helps you understand and organize the process — it is not a law firm and does not provide legal advice.
Is Application for informal appointment of special administrator available online?
Most New Mexico probate forms are published as PDFs by the state courts or the county clerk. You can find the official source linked above.

Other New Mexico Probate Forms

Letters Testamentary (Will)4B-307Application for Informal Appointment of Personal Representative (No Will)4B-301Application for Informal Probate of Will and for Informal Appointment of Personal Representative (Will)4B-302Order of Informal Appointment of Personal Representative (No Will)4B-303

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Disclaimer: This page is for informational purposes only and does not constitute legal advice. Probate forms and requirements vary by state, county, and individual circumstances, and change over time. Always verify the current form and instructions with your local probate court, and consult a qualified attorney for advice specific to your situation. SwiftProbate is not a law firm and does not provide legal representation.