Illinois law governs guardianship under Articles XI and XIa of the Probate Act of 1975, which require court petitions, physician evaluations, and judicial hearings before any guardian receives legal authority over another person.
Cooper Trachtenberg Law Group, an Illinois family law firm in Rolling Meadows, represents families seeking guardianship of minors and disabled adults across Cook County, DuPage County, Lake County, and the greater Chicago suburbs.
The firm’s guardianship attorneys guide petitioners through every stage of the process, from filing the initial petition in probate court through the final hearing and annual reporting obligations.
Your family’s stability deserves experienced legal guidance — schedule a guardianship consultation with Cooper Trachtenberg Law Group today at 847-995-8800.
Guardianship is a court-supervised legal arrangement in which a judge appoints one person or entity to make decisions for another person who cannot make or communicate those decisions independently.
Illinois probate courts grant guardianship over two categories of individuals: minors under the age of 18 and adults with qualifying disabilities.
The Illinois Probate Act of 1975 establishes the statutory framework for both categories. Article XI (755 ILCS 5/11-5) governs guardianship of minors, while Article XIa (755 ILCS 5/11a-3) governs guardianship of adults with disabilities.
Each article imposes distinct evidentiary standards, procedural requirements, and reporting obligations on petitioners and appointed guardians.
A guardian appointed under Illinois law may receive authority over the person (daily care, medical decisions, living arrangements), the estate (finances, property, assets), or both.
The scope of authority depends on the type of guardianship the court orders and the specific needs of the individual under protection, so families can secure the exact level of oversight a vulnerable loved one requires without unnecessarily restricting that person’s independence.
Illinois courts treat guardianship as a measure of last resort. The Illinois Guardianship and Advocacy Commission emphasizes that less restrictive alternatives — including powers of attorney, supported decision-making agreements, and health care surrogates — must be considered before a court restricts an individual’s autonomy through guardianship.
Illinois probate courts appoint guardians for minors when a child under 18 has no parent able or willing to provide day-to-day care. Common situations that trigger minor guardianship proceedings include the death of both parents, parental incapacity due to illness or injury, parental incarceration, abandonment, and situations involving abuse or neglect.
Section 11-5 of the Illinois Probate Act establishes a jurisdictional threshold: a court cannot appoint a guardian for a minor if the child has a living parent whose parental rights remain intact and who is willing and able to provide care.
Three exceptions apply under the statute — the parent voluntarily relinquished physical custody, the parent fails to object at the hearing after receiving notice, or the parent consents to the appointment in a notarized written document or in open court.
A minor who is 14 years of age or older may nominate a preferred guardian, subject to court approval under Section 11-5(c) of the Probate Act.
Illinois law also provides two additional guardianship mechanisms for minors: short-term guardianship, which a parent may appoint in writing for up to 365 days without court approval under Section 11-5.4, and standby guardianship, which automatically activates when a parent becomes unable to make decisions for the child.
| Minor Guardianship Type | How It Is Created | Duration | Court Approval Required |
| Short-Term Guardianship | Written instrument signed by a parent, witnessed by 2 adults | Up to 365 days | No |
| Standby Guardianship | Court petition under Section 11-5.3 activates upon a triggering event | Until the child turns 18 or the court terminates | Yes |
| Plenary (Full) Guardianship | Court petition, hearing, best-interest determination | Until the child turns 18, the parent petitions for restoration, or the court terminates | Yes |
Families navigating child custody disputes alongside guardianship questions benefit from working with attorneys experienced in both practice areas.
Cooper Trachtenberg Law Group represents petitioners in guardianship proceedings across Cook County and surrounding jurisdictions, including Rolling Meadows, Arlington Heights, Schaumburg, and Barrington.
If you’re ready to get started, call us now!
Article XIa of the Illinois Probate Act governs guardianship for adults age 18 and older who have a disability that prevents them from making or communicating responsible decisions.
Qualifying disabilities under Section 11a-2 of the Probate Act include mental deterioration, physical incapacity, mental illness, developmental disability, and an inability to manage personal or financial affairs due to substance use.
The evidentiary standard for adult guardianship is clear and convincing evidence — a higher threshold than the preponderance standard applied in minor guardianship cases.
A petitioner must demonstrate that the respondent’s disability renders the individual unable to make responsible decisions about personal care, finances, or both.
Illinois law requires that a licensed physician evaluate the respondent and prepare a written report within three months of the petition filing date.
Section 11a-9 mandates that the report describe the nature of the disability, assess how the disability impacts the respondent’s ability to function independently, and recommend the most suitable living arrangement.
The court must schedule a hearing within 30 days of the petition’s filing. The respondent has the right to legal representation, a jury trial, and to present evidence and question witnesses.
A Guardian ad Litem — an attorney or qualified individual appointed by the court — investigates the case, interviews the respondent, and files a written report with recommendations before the hearing.
Families seeking guardianship of a disabled spouse or adult child with a developmental disability often need coordinated legal guidance across guardianship, estate planning, and family law.
Illinois probate courts have authority to appoint guardians at multiple levels, depending on the individual’s needs and the degree of decision-making support required. The table below compares the five primary guardianship categories recognized under the Illinois Probate Act.
| Guardianship Type | Applies To | Scope of Authority | Duration |
| Guardian of the Person | Minors or disabled adults | Personal care, medical decisions, living arrangements | Varies by case |
| Guardian of the Estate | Minors or disabled adults | Financial management, property, assets, investments | Varies by case |
| Limited Guardianship | Disabled adults | Authority is restricted to specific decisions listed in the court order | Court-specified term |
| Plenary Guardianship | Disabled adults | Full authority over person and/or estate | Until court modification or termination |
| Temporary Guardianship | Disabled adults (emergency) | Emergency decision-making authority | Maximum 60 days |
Limited guardianship reflects Illinois’ statutory preference for preserving the maximum self-reliance and independence of individuals with disabilities.
Under Section 11a-12 of the Probate Act, the court must specify exactly which powers the limited guardian holds, and the guardian cannot exercise authority beyond those listed powers.
Plenary guardianship grants the broadest authority and applies when the court determines the respondent cannot make any responsible decisions regarding personal care, finances, or both.
A plenary guardian’s powers must still serve the stated purpose of guardianship: protecting the individual from neglect, exploitation, or abuse while encouraging development of self-reliance.
Temporary guardianship operates as an emergency mechanism. The court may appoint a temporary guardian when an individual with a disability faces immediate risk and a full guardianship proceeding cannot be completed in time.
Temporary guardianship orders expire after 60 days and cannot be renewed without filing a new petition.
Families weighing guardianship options for children with special needs should also explore how guardianship of disabled minors works under Illinois law, particularly as those children approach age 18 and parental authority terminates automatically.
Navigating guardianship decisions affects your family’s future for years — contact Cooper Trachtenberg Law Group to discuss your options with an experienced Illinois guardianship attorney.
If you’re ready to get started, call us now!
Filing a guardianship petition in Cook County requires preparing legal documents, securing a physician’s evaluation, serving notice on all interested parties, and presenting evidence at a probate court hearing.
The process differs depending on whether the respondent is a minor or an adult with a disability, but both paths follow a defined sequence under the Illinois Probate Act.
Adult guardianship petitions are filed under Section 11a-8 of the Probate Act (755 ILCS 5/11a-8) in the probate division of the circuit court for the county where the respondent resides. Minor guardianship petitions fall under Section 11-8 (755 ILCS 5/11-8) and require facts establishing either parental consent or a legal basis to proceed without it.
For adult cases, the petition must state the respondent’s name, date of birth, and residence; the names and addresses of the respondent’s nearest relatives; the proposed guardian’s name and qualifications; the reasons guardianship is needed; and a description of less restrictive alternatives that were considered. Minor petitions require comparable identifying details, plus the basis for parental consent or non-consent.
Before filing, a licensed physician must evaluate the respondent and prepare a written report meeting the requirements of Section 11a-9.
This evaluation must be conducted within three months of the petition filing date and must address the nature of the disability, its impact on decision-making, and a recommendation on the type of guardianship needed.
If no report accompanies the petition, the court will order its own evaluation, which can delay the case.
The petitioner submits the completed petition, physician’s report, and any required attachments — including the Notice of Rights of Respondent — to the Cook County Circuit Clerk’s probate division. Cook County also applies its own local procedures under Part 12 of the Circuit Court’s general rules of practice, so it’s worth confirming current local form requirements before filing.
Once the petition is filed, Illinois law requires the court to set a hearing date within 30 days for adult guardianship cases under Section 11a-8.
For minors, summons must be served on the minor (if age 14 or older), both parents, and other interested parties. For adults, notice of the hearing date must be sent to the respondent, the proposed guardian, and all listed relatives at least 14 days before the hearing, by mail or in person. Proof of service must be filed with the circuit clerk for each notice issued.
The court appoints a Guardian ad Litem to independently investigate the respondent’s circumstances, meet with the respondent, and report findings and a recommendation back to the court before the hearing.
At the hearing, the petitioner, proposed guardian, Guardian ad Litem, and any objecting parties present evidence. The respondent has the right to attend and contest the guardianship or to propose an alternative guardian.
If the court finds guardianship is warranted, the judge enters an order specifying whether the guardianship is plenary or limited, and defines the exact scope of authority granted to the guardian over the person, the estate, or both.
A Guardian ad Litem (GAL) is a court-appointed representative who investigates the circumstances of a guardianship case and advocates for the best interests of the individual who may become a ward. Illinois probate courts appoint GALs in both minor and adult guardianship proceedings to serve as independent fact-finders.
In adult guardianship cases, Section 11a-10 of the Probate Act requires the GAL to personally observe the respondent before the hearing, inform the respondent of the petition’s contents and the respondent’s rights both orally and in writing, and attempt to determine the respondent’s position on the proposed guardianship.
The GAL then files a written report with the court detailing observations, the respondent’s stated preferences, and the GAL’s professional opinion on whether guardianship is appropriate.
The GAL has access to the respondent’s medical and mental health records under Section 11a-10, notwithstanding confidentiality protections in the Mental Health and Developmental Disabilities Confidentiality Act.
GALs may also consult with professionals trained in working with individuals who have developmental disabilities, mental illness, physical disabilities, or cognitive impairments.
Families who have previously worked with a GAL in child custody evaluations will recognize parallels in the guardianship context — both involve independent investigation, interviews with all parties, and a written recommendation to the court.
The guardianship GAL role, however, focuses specifically on capacity and the appropriateness of limiting an individual’s legal autonomy.
Illinois law provides multiple mechanisms for one person to make decisions on behalf of another. Guardianship and power of attorney are the two most common, but they differ fundamentally in how they are created, when they take effect, and how much autonomy the individual retains.
A power of attorney is a voluntary arrangement. The individual (principal) signs a legal document designating an agent to act on the principal’s behalf.
Illinois recognizes two statutory forms: the Power of Attorney for Property and the Power of Attorney for Health Care, both governed by the Illinois Power of Attorney Act (755 ILCS 45).
A power of attorney requires no court involvement, can be executed while the individual still has capacity, and can be customized to limit or expand the agent’s authority.
Guardianship, by contrast, is involuntary and court-ordered. A judge must find — based on clear and convincing evidence in adult cases — that the individual lacks capacity before appointing a guardian. Guardianship strips certain legal rights from the individual, while a power of attorney preserves the principal’s ability to revoke the arrangement at any time.
The Illinois Guardianship and Advocacy Commission recommends that families explore power of attorney and supported decision-making alternatives before pursuing guardianship.
When an individual has already executed a valid power of attorney, and the designated agent is acting appropriately, guardianship may be unnecessary. However, if the agent is absent, unwilling, or acting against the individual’s interests, a guardianship petition may be the only mechanism to protect the vulnerable person.
Cooper Trachtenberg Law Group advises families on the appropriate legal tool — guardianship, power of attorney, or a combination — based on each client’s specific circumstances, the nature of the disability, and the level of protection needed.
Contact the firm’s Rolling Meadows or Lincolnshire office to discuss your family’s situation.
What qualifies someone as a “person with a disability” for guardianship purposes in Illinois?
Illinois Probate Act Section 11a-2 defines a person with a disability as someone age 18 or older whose mental deterioration, physical incapacity, mental illness, or developmental disability prevents the individual from making or communicating responsible decisions about personal care or financial management.
Can a parent appoint a guardian for a minor child without going to court?
Illinois law allows a parent to appoint a short-term guardian through a written instrument signed by the parent and witnessed by two adults aged 18 or older. Short-term guardianship under Section 11-5.4 lasts up to 365 days and requires no court filing or judicial approval.
How long does a guardianship hearing take to schedule in Illinois?
Illinois probate courts must schedule a hearing within 30 days of filing an adult guardianship petition. Minor guardianship hearing timelines vary by county, but most Cook County and DuPage County courts schedule initial hearings within 30 to 60 days of petition filing.
Does the person under guardianship lose all legal rights in Illinois?
Limited guardianship preserves most of the individual’s rights and restricts the guardian’s authority to specific decisions listed in the court order. Plenary guardianship transfers broader decision-making authority, but the individual retains the right to petition the court to modify or terminate the guardianship at any time.
What is the difference between a guardian of the person and a guardian of the estate?
A guardian of the person makes decisions about daily care, medical treatment, and living arrangements. A guardian of the estate manages the individual’s finances, property, and assets. Illinois courts may appoint one person to serve in both roles or may appoint separate guardians for the person and the estate.
How much does it cost to file a guardianship petition in Cook County?
Cook County Circuit Court charges a filing fee for guardianship petitions, and additional costs include the physician evaluation report, attorney fees, sheriff service fees for delivering summons, and potential Guardian ad Litem fees. Total costs vary based on whether the case is contested or uncontested.
Can a guardianship be reversed or terminated in Illinois?
The ward, the guardian, or any interested person may petition the probate court to modify or terminate a guardianship. For adult guardianship, the petitioner must demonstrate a material change in circumstances or that the individual has regained capacity to manage personal or financial affairs independently.
Who pays for the Guardian ad Litem in an Illinois guardianship case?
The petitioner typically bears the initial cost of Guardian ad Litem fees. If the respondent has sufficient funds, the court may order those fees paid from the respondent’s estate. The Office of State Guardian is exempt from expert service fee assessments under Section 30 of the Guardianship and Advocacy Act.
What happens to parental rights when a guardian is appointed for a minor?
Guardianship of a minor does not terminate parental rights. A parent whose rights remain intact may petition the court to discharge the guardian and terminate the guardianship by demonstrating a material change in circumstances and proving, by a preponderance of the evidence, that termination serves the child’s best interests.
Can a non-family member serve as guardian in Illinois?
Illinois law does not require a guardian to be related to the minor or disabled adult. Any person age 18 or older who meets the qualifications under Sections 11-3 (minors) or 11a-5 (disabled adults) may petition the court for appointment, provided the person has no disqualifying felony conviction.
Guardianship decisions carry lifelong consequences for vulnerable family members — call Cooper Trachtenberg Law Group at 847-995-8800 to protect the people who depend on you most.
About the Author
Founder of Cooper Trachtenberg Law Group, LLC · Illinois Family Law Attorney · Certified Mediator · Collaborative Divorce Practitioner
Miriam E. Cooper is the founder of Cooper Trachtenberg Law Group, LLC and an Illinois family law attorney with more than 30 years of experience helping individuals and families navigate divorce, custody, parenting time, child support, spousal maintenance, property division, and post-decree family law matters throughout the Chicago metropolitan area.
A certified mediator and collaborative divorce practitioner, Miriam completed mediation training through Northwestern University and serves clients through mediation, collaborative law, and litigation when necessary. She is also qualified as a Child Representative and Guardian ad Litem, allowing her to provide informed guidance in complex family law disputes involving children and families.
Drawing on more than three decades of family law experience, Miriam regularly advises clients on legal issues affecting Illinois families and is committed to helping clients reach practical, durable resolutions tailored to their unique circumstances.
Practice Areas: Divorce, Mediation, Collaborative Divorce, Child Custody, Parenting Time, Child Support, Spousal Maintenance, Property Division, Post-Decree Matters
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