About Letters Testamentary (Will)
This form certifies that a personal representative has been appointed and qualified to administer an estate under a will, granting them all statutory powers and authorities.
When you'd use it: File this form after the probate court appoints a personal representative (executor/executrix) who has filed a statement accepting the duties of office.
Where to get the official form
The official version of Letters Testamentary (Will) 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 Letters Testamentary (Will) (PDF) →
Source: sandovalcountynm.gov
Link last checked: May 31, 2026
How to file Letters Testamentary (Will) in New Mexico
- Step 1 — Confirm you have the correct formUse Letters Testamentary (Will) (4B-107) when file this form after the probate court appoints a personal representative (executor/executrix) who has filed a statement accepting the duties of office. 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 Letters Testamentary (Will) 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 Letters Testamentary (Will) 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).