Converting an Illinois guardianship to a full adoption is not a modification of the existing guardianship — it is a separate adoption case filed under the Illinois Adoption Act. Both private plenary guardianships and long-running DCFS guardianships can be converted. The case requires a new petition, full termination of any remaining biological-parent rights, and a final judgment of adoption. For families who already have plenary guardianship, the move to adoption is usually straightforward and finishes in two to three months.

Many of our adoption clients started as guardians. A grandmother who took in her grandchild after a parent’s incarceration. An aunt and uncle who took on a niece during a parent’s substance-abuse crisis. A long-running DCFS guardianship that originated in a juvenile case and never resolved into a permanency plan. By the time these families call us, the children have been in their care for years — and the question is, what does it take to make it permanent?

This post walks through the two most common conversion scenarios — private plenary guardianship and DCFS guardianship — and explains why the move from guardianship to adoption is worth doing even when the day-to-day caregiving is already happening.

Adoption is a separate case, not a modification

The first thing to understand is that an adoption is not a change to your existing guardianship case. The two cases live under different chapters of Illinois law — guardianship under the Probate Act (755 ILCS 5/), adoption under the Adoption Act (750 ILCS 50/) — and they serve different purposes. A guardianship gives the guardian the legal authority to care for the child. An adoption makes the guardian the legal parent.

So we file a new adoption petition in the county of your choice. We do not reopen the guardianship case. The adoption petition references the guardianship case (it’s part of the procedural history), but the work is happening in a fresh case file with a fresh case number.

Path A: Private plenary guardianship to adoption

The most common scenario in our office. A relative obtained guardianship years ago — usually after a brief stint of “short-term” guardianship that converted to plenary guardianship after a default or contested hearing. The biological parents have been disinterested for some or all of the years since. Now the family wants to formalize the relationship through adoption.

What changes at adoption

You become the legal parent. Guardianship gives you authority. Adoption gives you parentage. The child’s birth certificate is reissued listing you as parent. Inheritance rights vest. The guardianship’s “subject to court oversight” framework drops away.
Annual accountings end. Guardians of the estate (when the child has assets) file annual statements with the Clerk. Adoption ends that requirement.
The guardianship case closes. Once the adoption is final, the underlying guardianship is dismissed because there’s nothing left to guard.
The child’s last name can change. If the child wants to take the adopting family’s surname, the adoption judgment effects the change.

What still has to happen

The same parental-rights termination work that applies to any adoption applies here. If both biological parents agree, we use consents. If one or both can’t be reached, we serve them and default after 30 days. If a parent contests, we proceed to a fitness hearing. The years of no-contact history that supported the original guardianship usually carry the day at any contested hearing under the lack-of-interest ground in 750 ILCS 50/1(D)(b).

For the full breakdown of how parental rights get terminated, see How a parent’s rights are terminated in an Illinois adoption.

Path B: DCFS guardianship to adoption

This scenario is less common today than it used to be — DCFS now does fewer guardianships and more direct adoptions through its standard subsidy framework — but plenty of families still hold long-running DCFS guardianships from juvenile court cases that resolved on a guardianship goal. The conversion path here has one extra wrinkle: the underlying juvenile court file is sealed.

Sealed juvenile records and judicial notice

When DCFS guardianship was entered in a juvenile court case, the juvenile file is sealed. The clerk’s office will not pull it for you. The relevant orders — termination of one parent’s rights, surrender by the other, the appointment of DCFS as guardian — are inside that sealed file.

The fix is to ask the adoption judge to take judicial notice of the sealed juvenile case. The judge can pull the relevant orders from the sealed file and incorporate them into the adoption case without making them public. We provide the juvenile case number in the adoption petition and ask for judicial notice on the first or second hearing.

What the prior juvenile case did and didn’t accomplish

In some DCFS guardianships we see, one parent’s rights were terminated outright in juvenile court (often the mother surrendered, sometimes through a court-witnessed relinquishment) and the other parent’s rights remained intact while the case sat on a guardianship goal. In others, both parents’ rights remained intact throughout the juvenile case. Either way, any biological-parent rights still standing have to be terminated in the adoption case before finalization. We use the same consent / default / unfitness framework explained above, often citing the prior juvenile court file as evidence on the unfitness side.

What it costs and how long it takes

Parker & Parker handles guardianship-to-adoption conversions on a flat fee that depends on the existing relationship:

$2,750 for grandparent and step-parent conversions
$2,950 for niece/nephew, sibling, and other close-kin conversions

The flat fee includes the petition filing fee, the guardian ad litem fee, service of process, and the certified judgment of adoption. It does not include extended trials on contested unfitness, which we discuss separately if a contest develops. As a relative adoption, the case skips the home study and the six-month waiting period (see our relative adoption post).

Most uncontested conversions complete in two to three months. The clock is governed almost entirely by parental-rights termination, exactly as it is in a fresh relative adoption.

When a guardian asks: “Do we even need to adopt?”

This is the right question to ask, and the answer turns on the family’s goals. Reasons families convert from guardianship to adoption:

The child is asking for it. Often the most decisive factor. A 12-year-old who has been with grandparents for seven years asking to be formally adopted is hard to argue with.
Inheritance and estate planning. Adopted children inherit by intestacy and through ordinary will provisions like any other child. Guardianship doesn’t carry inheritance rights.
Insurance and benefits. Adoptive parents can add the child to employer-sponsored benefits without question. Guardianship plans vary by carrier.
Removing the lingering risk of a parental challenge. Guardianships can theoretically be modified at any time on a substantial change in circumstances. Adoption is permanent.
The Social Security and tax benefits. A new birth certificate, a new Social Security number if requested, and the federal adoption tax credit (worth up to $17,670 per child for special-needs adoptions in 2026 with $5,120 refundable). See the 2026 adoption tax credit.
The court oversight ends. Guardians answer to the court annually. Adoptive parents do not.

Reasons not to convert: if the biological parents are likely to come back into the child’s life in a meaningful way and the family wants to preserve flexibility, or if the child is close to age 18 and the conversion would be largely symbolic.

Converting a Guardianship to Adoption in Central Illinois?

Parker & Parker handles guardianship-to-adoption conversions for both private and DCFS cases. Call (309) 673-0069 or
schedule a consultation.

Frequently Asked Questions

Is converting a guardianship to an adoption automatic?

No. Adoption is a separate court case under a separate chapter of Illinois law (the Adoption Act). The existing guardianship is dismissed once the adoption finalizes, but the adoption itself is initiated by a new petition.

Do we still need to terminate the biological parents’ rights if we already have plenary guardianship?

Yes. Plenary guardianship gives you authority to care for the child but does not terminate parental rights. Any remaining biological-parent rights have to be addressed in the adoption case — by consent, default after service, or proof of unfitness.

What if the juvenile court file is sealed?

We ask the adoption judge to take judicial notice of the sealed juvenile case. The judge can review the relevant orders inside the sealed file and use them in the adoption without making them public. The juvenile case number, which we get from your guardianship paperwork, is what triggers judicial notice.

Will our DCFS subsidy continue after the adoption?

Yes, but it converts from a Subsidized Guardianship Agreement to an Adoption Assistance Agreement. The benefits are similar — monthly payment, medical card, “needs not payable” category — but they’re administered under different DCFS rules.

How long does the conversion take?

Most uncontested conversions resolve in two to three months. The timeline is driven by parental-rights termination — same as in any adoption.

What does it cost?

Parker & Parker charges $2,750 for grandparent and step-parent conversions and $2,950 for niece/nephew and other close-kin conversions, including filing fees, guardian ad litem fees, service of process, and the certified judgment.

Going from Guardianship to Adoption in Illinois — Private Guardianship or DCFS Guardianship