Guardianship in Illinois is a court process that gives one person legal authority to make decisions for someone who cannot make them alone, either a minor child or an adult with a disability. For adults, the court must find by clear and convincing evidence that the person cannot manage personal decisions, finances, or both (755 ILCS 5/11a-3). The law treats it as a last resort, so judges expect you to rule out simpler tools like a power of attorney first. In DuPage County the case is filed with the Circuit Clerk and heard at the DuPage Judicial Center in Wheaton, with a hearing set within 30 days of the petition.
Families usually start asking about guardianship in Illinois at a hard moment: a parent with dementia is signing documents they do not understand, an adult child with a disability is turning 18, or a minor needs a legal decision-maker because a parent cannot serve. This guide explains when a guardian is actually necessary, the types Illinois courts can appoint, and how the case runs step by step in DuPage County, with the statute sections that control each piece.
Illinois splits adult guardianship into two separate jobs, and the court can assign one without the other (755 ILCS 5/11a-3):
Before you file anything, write down the specific decisions that are going unmade: medical consents, rent, bills, benefits paperwork, a lease that needs signing. That list tells you which appointment to request, and it becomes the backbone of your petition. If the only problems are financial and there is a trusted agent already named in a durable power of attorney, you may not need a guardianship case at all.
Guardianship removes rights from an adult, so Illinois treats it as the last tool, not the first. The court tailors any guardianship to the person's actual limitations, and a petition that ignores workable alternatives invites pushback from the guardian ad litem. Cheaper, faster options include:
If the person has already lost capacity and none of these tools are in place, guardianship is usually the remaining path.
Match the appointment to the real problem. Requesting more authority than the facts support slows the case down.
| Type | What it covers | How long it lasts | Statute |
|---|---|---|---|
| Plenary guardianship | Full decision-making for the person, the estate, or both, when the adult cannot make or communicate responsible decisions | Until the court modifies or terminates it | 755 ILCS 5/11a-3 |
| Limited guardianship | Only the specific powers the order lists; the adult keeps every right not expressly transferred | Until modified or terminated | 755 ILCS 5/11a-3 |
| Temporary guardianship | Emergency stopgap while the main case is pending, for the person's immediate welfare and protection | Up to 60 days | 755 ILCS 5/11a-4 |
| Short-term guardian (minor) | A parent's written appointment of a guardian for a minor, signed before two witnesses, with no court case | Up to 365 days | 755 ILCS 5/11-5.4 |
Adult guardianship petitions for DuPage County residents are filed in the 18th Judicial Circuit and heard at the DuPage Judicial Center, 505 N. County Farm Road in Wheaton. Illinois requires e-filing in civil cases, so the petition goes in electronically through the statewide system. The sequence looks like this:
If the situation is dangerous right now, ask for a temporary guardian at the same time you file. The court can grant it on a showing of necessity for the person's immediate welfare, and it expires within 60 days (755 ILCS 5/11a-4).
The petitioner must prove disability by clear and convincing evidence, a higher bar than an ordinary civil case (755 ILCS 5/11a-3). The judge then shapes the order to the evidence: plenary if the person can make no responsible decisions, limited if they can handle some areas but not others. Come prepared with specifics rather than conclusions. Bank statements showing missed payments, a doctor's concrete examples, and the guardian ad litem's report carry far more weight than a family member testifying that someone "cannot cope." If relatives disagree about who should serve, tell your attorney before the hearing, not at it; contested guardianships follow a different preparation path.
Winning the appointment starts the work. A guardian of the person must arrange care and services that fit the ward's needs and preferences (755 ILCS 5/11a-17). A guardian of the estate manages the ward's property under court oversight and files inventories and accountings on the schedule the court orders (755 ILCS 5/11a-18). Practical rules that keep guardians out of trouble:
A court can appoint a guardian for a minor when the parents cannot care for the child (755 ILCS 5/11-5), and the child's estate needs a guardian when a minor inherits money directly. Two planning tools prevent most emergencies. First, a parent can name a short-term guardian in a signed, witnessed writing that works for up to 365 days with no court case at all (755 ILCS 5/11-5.4). Second, naming a guardian for your children in your will tells the court exactly who you chose; our guide to making a will in Illinois walks through that nomination step.
Our honest take: about half the guardianship calls we get do not need a guardianship. If your parent can still understand documents, powers of attorney signed this month are faster, private, and cheaper than any court case. Guardianship in Illinois earns its cost when capacity is already gone or when someone is actively taking advantage of a vulnerable adult, because a court order is the one tool that overrides everything else.
Chris J. Aiello, P.C. has handled guardianship and estate matters for Villa Park and DuPage County families since 1990. Talk with a guardianship attorney serving Villa Park and DuPage County and we will tell you plainly whether you need the court at all.
Schedule a ConsultationSources: 755 ILCS 5/11a-3 · 755 ILCS 5/11a-4 · 755 ILCS 5/11a-8 · 755 ILCS 5/11a-10 · 755 ILCS 5/11-5.4 · Illinois Legal Aid Online: adult guardianship · Illinois Guardianship and Advocacy Commission FAQ · DuPage County Circuit Clerk
The statute directs the court to set the hearing within 30 days of the petition being filed (755 ILCS 5/11a-10). An uncontested case with the physician’s report in hand can conclude at or shortly after that first hearing. Contested cases, or cases where the medical evaluation lags, take months. If someone is at risk right now, ask for a temporary guardian, which the court can grant while the main case is pending.
Generally an adult the court finds capable and suitable for the job. Certain felony convictions and serious conflicts of interest can disqualify a candidate. Courts usually prefer a family member who knows the person, but when no suitable relative is available the court can appoint another qualified person, including a public guardian.
A power of attorney is voluntary: the person signs it while they still have capacity, they choose the agent, and no court is involved. Guardianship is imposed by a judge after capacity is lost. Signed powers of attorney usually make a later guardianship unnecessary, which is why attorneys push so hard to get them done early.
Yes. The court keeps jurisdiction over the case, so a guardian’s powers can be expanded, narrowed, or transferred, and the ward or another interested person can petition to modify or terminate the guardianship if circumstances change or capacity is restored.
Expect court filing fees, the physician’s evaluation, a guardian ad litem fee, and attorney fees, with contested cases costing several times more than agreed ones. Guardian of the estate appointments add bond and accounting costs. This is a major reason powers of attorney, signed before capacity is lost, are the cheaper path.
Yes. When the person’s immediate welfare and protection require it, the court can appoint a temporary guardian while the full case is pending. The appointment expires within 60 days or when a regular guardian is appointed, whichever comes first (755 ILCS 5/11a-4).
John Pizinger, Esq., Chris J. Aiello, P.C. Serving Villa Park and DuPage County families in guardianship, probate, and estate matters since 1990.
Related reading: Living Trusts in Illinois and How to Make a Will in Illinois.