Probate leads in Cook County, Illinois.
Investors researching probate leads in Cook County can compare public court lists with USLeadList death and property matches, which do not wait for a court filing. Our average is 991 records per month.
Pathway to Success guide · Onboarding video · Marketing SOP · Letters and postcard templates

Inside Cook County
What the data looks like here.USLeadList supplies pre-probate and inheritance data across Cook County at about 991 new records a month, 1,057 on average over the past year. It is built from death and property records rather than the courthouse, and each lead goes to at most three subscribers.
Why investors work Cook County
Illinois does not reassess real property when it changes hands, so a Cook County heir who keeps the house typically inherits the same assessment rather than a reset one. The decision is less about a tax spike than about whether the family wants to hold the property at all. Illinois also gives an owner a route around an ordinary probate case: a transfer on death instrument recorded under 755 ILCS 27 passes real property at death with no court filing. Personal property is a separate matter, cleared by a small estate affidavit up to $150,000. A house that moves by recorded instrument may never produce a probate file, which is why a court docket alone is an incomplete picture of what is changing hands here.
On the ground
Chicago's bungalow belt is the local shorthand for the brick single-family houses built in the 1910s and 1920s in a collar just inside the city limits, and the Chicago History Museum notes that by 1930 a quarter of all residential structures in metropolitan Chicago were less than ten years old. Those blocks sit in a different assessment world from the suburbs: the Cook County Assessor reassesses one third of the county each year, rotating between the City of Chicago, the north suburbs, and the south and west suburbs. An out-of-town buyer who treats Cook as one market misses that. Before pricing an inherited property, check which triad its township sits in.
Comparing Probate Lead Sources in Cook County
Cook County is its own judicial circuit and among the few in Illinois that maintain a standing Probate Division, so decedent estates here run through one well-defined court. Attorneys file through eFileIL, and the case information lands in re:SearchIL, the Supreme Court's remote access system, where any registered public user can pull the same estate. That is the catch with working the docket: the record is public, and a competing investor can read the same name you just found. It also arrives late. A representative publishes creditor notice once a week for three weeks with a claim date no earlier than six months out, and nothing appears in the file until someone opens it. USLeadList builds its Cook County file from death and property records about five weeks after a death, without waiting for a probate filing and independent of whether one is ever opened, which often makes it the earlier and broader starting point for prospecting.
How Illinois rules shape Cook leads
Verified state research, applied locally.Illinois does not reassess real property on a change of ownership. Assessments are set at 33 1/3 percent of fair cash value (35 ILCS 200/9-145) and redone in general assessment years every fourth year outside Cook County (35 ILCS 200/9-215), so an heir inherits the same assessment. 35 ILCS 200/9-180 governs pro rata valuation of new or removed improvements, not inheritance. Illinois does levy its own estate tax, administered by the Attorney General, with a $4,000,000 exclusion for deaths on or after January 1, 2013, no portability, and payment due nine months after death (35 ILCS 405/2), reaching only estates above that figure. For ordinary estates the operative rule is that probate is avoidable: a transfer on death instrument under 755 ILCS 27 passes real property at death with no court filing, and the small estate affidavit clears up to $150,000 of personal property.
Ways property can avoid probate
Transfer on death instrument under the Real Property Transfer on Death Instrument Act, 755 ILCS 27, as replaced by P.A. 102-68 effective January 1, 2022, which extended the instrument from residential real estate to all real property; joint tenancy; living trust; and the 755 ILCS 5/25-1 small estate affidavit for personal property.
Small-estate route
Small estate affidavit under 755 ILCS 5/25-1, for personal property only, capped at $150,000 excluding motor vehicles registered with the Secretary of State, for decedents dying on or after August 15, 2025 (P.A. 104-346). It requires that no letters of office be outstanding and none be contemplated or pending anywhere. There is no waiting period after death, and the affidavit is presented to the holder of the property rather than filed with the court. It cannot transfer real estate.
Timing that affects the public record
The statutory floor is the creditor window. Under 755 ILCS 5/18-3 the representative publishes notice once each week for three successive weeks and mails or delivers notice to known creditors, and the claim date stated in that notice may be no earlier than six months after first publication or three months after mailing, whichever is later. Under 755 ILCS 5/18-12(b) all claims that could have been barred are barred two years after death whether or not letters of office ever issue. Anyone holding the will must file it with the circuit clerk of the proper county immediately on the testator's death (755 ILCS 5/6-1). Illinois publishes no official typical duration.
Where court cases can be checked
re:SearchIL, the Illinois Supreme Court's statewide remote access system, which carries the case information and documents filed through eFileIL. Access is granted by user group and requires registration. Under the Supreme Court Remote Access Policy revised June 1, 2022, the public user group reaches probate case information but non-public documents in probate cases are excluded from remote access. Many circuit clerks also run their own county case lookups, and the electronic court record is open for free inspection at the courthouse.
Why pre-probate
Why pre-probate leads in Cook County, Illinois?A public probate list requires a filed case. Our source does not require a filing and may precede a later filing, but that is not guaranteed.
Inheritance creates a property decision
A death does not guarantee a sale. It does create practical decisions about upkeep, distance, taxes, repairs and whether anyone in the family wants the property.
Earlier than a court filing
When probate is required, the public case begins after the death and after someone files. Our county records begin with the death record itself.
Not limited to probate cases
Trusts, survivorship ownership and state-specific transfer instruments can move a property without an ordinary probate case. Court-only lists do not identify those paths.
Property data with optional contact enrichment
Size, location, value, and tax information come with the property record. Phone, email, spouse, and relative data are available through the skip tracing add-on.
What we mean by pre-probate
Pre-probate > probate. Here's why.Our Cook County data is not a court probate list. It identifies inherited-property records from deaths, including properties that may later enter probate and properties that never do.
The court docket is only one transfer path.
A trust, survivorship ownership or an authorized transfer deed may keep a property out of an ordinary probate case. The exact rules vary by state, which is why the local court and transfer details above matter.
An inheritance creates choices, not a guaranteed sale:
- Keep or occupy the property
- Rent it or transfer it within the family
- Sell it privately or through a public listing
FAQ
Cook County-specific questions.How many pre-probate records can I get in Cook County each month?
Where are Cook County probate cases filed, and can I search them?
Does a transfer on death instrument keep a Cook County house out of probate?
Do you have leads for Chicago, Illinois?
How do I work these leads in Cook County?
Why purchase from USLeadList?
Who uses USLeadList pre-probate leads?
How do I purchase pre-probate leads in Cook County?
Adjacent counties
Nearby markets in Illinois.Get your Cook County quote.
~60 seconds. Quote held for 30 days. No phone required.