Illinois Guardianship of a Minor: How to File Step by Step

Who Can File for Minor Guardianship in Illinois

Any adult relative or interested person can petition for guardianship of a minor in Illinois under the Probate Act of 1975 (755 ILCS 5/11-5). The catch is standing: the court cannot hear your petition if the child has a living parent whose rights haven't been terminated, whose whereabouts are known, and who is willing and able to care for the child.

The petitioner must prove a statutory exception by a preponderance of the evidence. Exceptions include voluntary relinquishment of physical custody; consent in open court or a notarized writing; or inability to give consent or receive notice because of an administrative separation, such as immigration detention or deportation. For an administrative-separation claim, the petition should be supported by a sworn affidavit and verified detainee-locator searches.

If a cooperative parent is willing to sign, you may not need court at all — a short-term guardianship form covers up to 365 days, with an extension for active military duty, without any court filing.

Assembling the Statewide Form Packet

Illinois uses standardized Supreme Court forms that every circuit court must accept. Your core packet includes:

• Petition for Guardianship of a Minor (Form 1601.1) — the main pleading listing the child's details, the parents, and your basis for standing
• Oath of Guardian — your sworn acceptance of fiduciary duties
• Consent to Guardianship and Appearance — signed by any parent who agrees
• Nomination of Guardian by Minor — required if the child is 14 or older
• Notice of Hearing — the document you'll serve on parents and relatives

You may also need the Additional Relatives attachment (if more than two relatives require notice) and the Additional Cases form (if there's an active divorce, parentage, or juvenile court case involving the child).

Download the complete form suite from the Illinois Courts standardized forms page. Do not use generic templates from document-aggregator sites — Illinois clerks reject forms that don't match the statewide suite.

Filing Your Petition

E-filing through eFileIL is mandatory for civil and probate cases statewide under Supreme Court Rule 9(a). Here's the sequence:

1. Complete the forms digitally, then flatten each PDF (print-to-PDF or "save as" to lock all fields)
2. Create an eFileIL account and select your county's circuit court
3. Upload the flattened documents as a new probate case filing
4. Pay nothing — as of October 1, 2025, M.R. Order 29741 eliminated all filing and appearance fees for minor guardianship cases statewide

If you lack internet access or have a disability that prevents e-filing, you can file on paper by attaching a signed Certification for Exemption from E-filing under Rule 9(d).

After the clerk processes your filing, you'll receive a case number and an initial hearing date.

Background Checks and Screening

Private minor guardianship petitioners are subject to background checks. Local court rules determine whether other adult household members must also be screened:

• CANTS 689 — the petitioner and any adult household members required by local rules sign this DCFS form authorizing a search of the Child Abuse and Neglect Tracking System
• Criminal history check — fingerprint-based screening through LEADS, administered by the Illinois State Police, for the people required by the circuit

A felony conviction involving harm to a child permanently disqualifies you. Other felony convictions don't automatically disqualify you, but the judge must find that appointing you still serves the child's best interests.

Serving Notice on Parents and Relatives

You must give written notice of the hearing date and location at least 7 days before the hearing to:

• Living parents, including adoptive or adjudicated parents (even an incarcerated parent — serve via certified mail to the facility)
• The child, if 14 or older
• Any currently serving guardian
• Adult nearest kin listed in your petition if the parents are deceased or unreachable

When a parent can't be found, you'll need to conduct a diligent search (last known addresses, relatives, correctional databases, social media), file a Statement in Support of Notice by Publication, and publish notice once a week for three consecutive weeks in a local newspaper.

What Happens at the Hearing

The judge follows a structured sequence: verify that everyone required got proper notice, confirm your background checks cleared, evaluate whether you've established standing under the statute, review the child's nomination (if 14+), and assess whether the appointment serves the child's best interests.

In uncontested cases where the parents consent, hearings are usually brief. Contested cases may require testimony, a guardian ad litem investigation, and multiple court dates.

If the judge grants the petition, you'll receive an Order Appointing Plenary Guardian. Take that order to the circuit clerk's office to get certified Letters of Office — the document schools, hospitals, and agencies need as proof of your authority.

After the Order Is Signed

Guardianship doesn't end at the hearing. Post-order responsibilities include reports on the child's welfare (frequency varies by circuit), managing any estate funds separately from your own money, and notifying parents before temporary out-of-state travel lasting more than 48 hours but less than 30 days. The guardianship lasts until the child turns 18, is adopted, or the court discharges the guardian.

For the full filing process — including county-specific clerk packet details, a notice-and-service tracker, and a hearing preparation checklist — the Illinois Guardianship and Custody Court Process Guide walks through every step with worksheets you can fill in as you go.

See more Illinois guides →