Probate in Cook County, Illinois: A Plain-English Guide

📘 Part of Inheriting a House in Illinois: The Complete Guide

If you're reading this, you've probably just lost someone, and now there's a folder of paperwork, a house, and a word you maybe never expected to deal with: probate. First, take a breath. You don't have to understand all of this today, and you don't have to do it alone. This is a plain-English walk-through of how probate works here in Cook County, Illinois — what it is, when it's actually required, and what your role looks like — so the road ahead feels a little less foggy.

One honest note before we start: we are not a law firm, and nothing here is legal or tax advice. We're a local team that helps families across Chicagoland navigate the whole process of an inherited home and estate. Think of this as a friendly orientation, not a substitute for your own attorney.

What probate actually is

Probate is simply the court-supervised process of settling someone's affairs after they pass away. It does three basic things: it confirms whether there's a valid will, it gives someone legal authority to act for the estate (that's you, if you've been named), and it makes sure debts, taxes, and final expenses get handled before whatever's left passes to the heirs or beneficiaries.

People tend to imagine probate as something cold and bureaucratic. In practice, for most Cook County families, it's a sequence of fairly ordinary steps — filing some paperwork, notifying the right people, paying the bills, and distributing what remains. It can take patience, but it's a path that thousands of families walk every year.

When probate is required in Illinois — and when it isn't

Not every estate has to go through formal probate. Illinois gives families a few ways to keep things simpler when the estate is modest. As a general rule of thumb, formal probate is usually triggered when the deceased person owned real estate in their own name alone, or had more than $100,000 in assets that don't automatically pass to someone else.

For smaller situations, Illinois offers a small estate affidavit. For deaths on or after August 15, 2025, the law raised this threshold to $150,000 in personal property (and, helpfully, vehicles no longer count toward that limit). A small estate affidavit can let you transfer things like bank accounts without opening a full court case — often a real relief for families.

Here's the catch that surprises a lot of people: if your loved one owned a house, condo, or two-flat in their name alone, that real estate generally requires probate no matter what it's worth. Some assets skip probate entirely — accounts with named beneficiaries, property held in joint tenancy, or anything inside a living trust. This is exactly the kind of detail worth confirming with an attorney, because the right path depends on how each asset was titled. You can read more about your options on our Cook County inherited-property page.

Independent vs. supervised administration

If probate is needed, Illinois offers two flavors, and the difference matters for how much time and cost you're looking at.

Independent administration

Independent administration is the default and by far the most common in Cook County. Under the Illinois Independent Administration of Estates Act, you handle the routine work — paying valid bills, selling property, distributing assets — without running back to a judge for permission at every turn. It's faster, less expensive, and far less stressful. Most straightforward estates, where the heirs get along and nothing is contested, qualify for this.

Supervised administration

Supervised administration means the court watches more closely and approves major steps along the way. A judge may require this when heirs are in conflict, when someone requests it, or when the situation is complicated. It's slower and involves more court appearances, but it adds a layer of oversight that's sometimes genuinely helpful when family members don't see eye to eye.

Your role as executor or administrator

If the will names you, you're the executor. If there's no will (or none that names someone), the court appoints an administrator. Either way, the court issues you what are called Letters of Office — the document that proves to banks, the county, and everyone else that you have authority to act.

From there, your main jobs are to: gather and protect the assets, notify heirs and known creditors, pay legitimate debts and final taxes, keep clear records, and distribute what's left according to the will or Illinois law. You'll work with the Cook County agencies along the way — the Cook County Assessor for the property's assessed value and exemptions, and the Cook County Treasurer for property-tax bills, which keep coming due whether or not the estate is settled. Staying current on those taxes is one of the most overlooked parts of the job, and it's where families most often get tripped up.

It's a real responsibility, but it doesn't have to consume your life. Many executors lean on an attorney for the legal filings and a coordinator for the practical side — clearing out the home, getting it ready, and figuring out the property's path. That's the part we help with, and you can see how on our selling an inherited house page.

How it runs through the Circuit Court of Cook County

Cook County probate is handled by the Probate Division of the Circuit Court of Cook County, located at the Richard J. Daley Center in downtown Chicago, at 50 West Washington Street. The Clerk's office for probate matters sits on the 12th floor (Room 1202), and the courtrooms are up on the 18th floor.

This is the same court whether your loved one lived in a Bronzeville bungalow, a Lincoln Park condo, a Berwyn two-flat, or an Arlington Heights ranch. Cook County is enormous and wildly varied — from dense city blocks to leafy suburbs — but every decedent estate in the county runs through this one Probate Division. You generally won't be camped out at the Daley Center; much of the work is paperwork and waiting, with only occasional court dates depending on the type of administration.

The realistic timeline

Here's the honest answer most people want: a straightforward Cook County estate under independent administration commonly takes somewhere in the range of 9 to 14 months from start to finish. A big reason is Illinois's mandatory creditor claims period — once notice is published, creditors typically have about six months to come forward, and the estate generally can't close until that window passes.

Simpler estates can move faster; complicated ones — contested wills, hard-to-find heirs, messy assets, or supervised administration — can stretch well beyond a year. If you're hoping to sell the home, the good news is you usually don't have to wait until the entire estate closes; with proper authority, an inherited property can often be prepared and sold while probate is still wrapping up. Knowing that timeline up front tends to take a lot of the anxiety out of it.

Frequently asked questions

Do I need a lawyer for probate in Cook County?

Illinois doesn't strictly require an attorney for every probate matter, but for any estate involving real estate or meaningful assets, most families are glad they hired one. The filings, deadlines, and creditor rules are easy to get wrong, and the cost of a misstep is usually far higher than the legal fees. We're not a law firm and can't give legal advice — but we're happy to help you find a probate-experienced Cook County attorney.

Can I sell the house before probate is finished?

Often, yes. Once the court grants you Letters of Office, you generally have authority to sell the property, especially under independent administration, even though the broader estate is still open. The exact steps depend on the will and the type of administration, so confirm the specifics with your attorney before signing anything.

What happens if there's no will?

The estate still goes through probate, but the court appoints an administrator (often a close family member) and assets are distributed according to Illinois's intestacy rules — a fixed legal order based on surviving spouse, children, and other relatives. It's a well-worn path; you're far from the first family to face it without a will.

How much does probate cost?

Costs vary with the estate's size and complexity. You'll have court filing fees, possible publication and bond costs, and attorney fees, which are typically paid from the estate itself rather than out of your own pocket. A local attorney can give you a realistic estimate for your specific situation.

You don't have to figure this out alone

Settling an estate in Cook County is a marathon, not a sprint — but it's a familiar route, and there's real, honest help available for every part of it: the legal filings, the property taxes, clearing out the home, and deciding what to do with the house. If it would help to talk through your options with someone local who does this every day, we're here whenever you're ready, with no pressure and no obligation. You can also learn more about how we help families through probate.

This guide is general information about probate in Cook County, Illinois, and is not legal or tax advice. Please confirm the details of your situation with your own attorney or tax professional.

Related guides

• Cook County Probate Process: A Simple Step-by-Step Guide
• How Long Does Probate Take in Illinois? A Clear Guide
• Probate in Kane County, Illinois: A Plain Guide