About Letters of Office-Guardian of Estate
This form certifies that an individual has been appointed as guardian of the estate of a minor and is authorized to manage, invest, and have custody of the minor's estate under court direction.
When you'd use it: This form is issued by the court after an individual has been appointed guardian of the estate of a minor in a guardianship proceeding.
Where to get the official form
The official version of Letters of Office-Guardian of Estate is published as a PDF by the Illinois 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 of Office-Guardian of Estate (PDF) →
Source: oglecountyil.gov
Link last checked: May 31, 2026
How to file Letters of Office-Guardian of Estate in Illinois
- Step 1 — Confirm you have the correct formUse Letters of Office-Guardian of Estate (occ37) when this form is issued by the court after an individual has been appointed guardian of the estate of a minor in a guardianship proceeding. Double-check it's the right form for your situation — Illinois 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 of Office-Guardian of Estate 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 of Office-Guardian of Estate to the probate court or county clerk handling the estate — usually in the Illinois county where the deceased lived. Ask the clerk how they prefer to receive filings (in person, by mail, or e-filing).