In 2023, the last time the South and West suburbs were reassessed, the Board of Review issued 11,843 PIN-level decisions on attorney-filed residential appeals in Lyons Township alone. Orland produced 11,216. Worth, 8,328. Proviso, 8,215. Palos, 7,646.
Those five townships are all in the 2026 cycle, and the Board's Official Rules, last updated July 27, 2026, cap what one attorney can argue in front of the Board. Rule 12: "An attorney shall be limited to eight (8) dockets per hearing call and a maximum of 45 hearings per group."
Forty-five hearings per township group, per attorney code. A firm holding two percent of the Lyons book from 2023 would have had about 237 files in that one township. Under one code, 45 of them get a hearing. The other 192 are desk reviews whether the firm planned it that way or not.
Quick Answer
In 2023, Lyons alone produced 11,843 PIN-level decisions on attorney-filed residential appeals. Rule 12 caps an attorney at eight dockets per hearing call and 45 hearings per township group. A firm at two percent of that Lyons book would have about 237 files under one code-45 get a hearing; the rest are desk reviews. Assign codes and calendar evidence dates before filing.
Reassessment years double the book
The county's decision history makes the pattern plain. South and West suburban decisions, all classes:
- **2022:** 64,328 South and West suburban decisions (all classes), non-reassessment.
- **2023:** 135,324 South and West suburban decisions (all classes), reassessment year.
- **2024:** 97,160 South and West suburban decisions (all classes), non-reassessment.
Chicago shows the same shape: 154,898 decisions in 2023, then 372,847 in the 2024 reassessment year. The North suburbs went from 90,806 in 2021 to 218,764 in 2022. Reassessment years run roughly double, and the hearing cap does not move.
The two constraints, read separately
Eight dockets per call limits one session. Forty-five per group limits the whole township window. A firm can solve the first by scheduling and the second only by adding attorney codes or accepting desk review. Both decisions have to be made before the complaints are filed, because the code is on the complaint.
Desk review is not the loser's lane
The cap makes desk-versus-hearing a portfolio decision, and the Board's own grant codes suggest what travels well on paper. The most common reason the Board gives for a reduction on an attorney-filed appeal is "analysis of comparable properties, a recent sale, and/or an update of property characteristics." That is a documentary argument. A clean uniformity grid, an arm's-length sale, or a characteristic error the Assessor's own record confirms rarely needs an attorney in the room. Save the hearing slots for the files that need a story told: a vacancy with a history, an income property whose expenses need context.
Evidence deadlines are published and short
Rule 14 requires documents "no later than the time period set by the Board of Review following the closing of the Township for both desk review and hearing files." For 2026 the Board has published that period:
- **Group 1 (Evanston, New Trier, Norwood Park, Oak Park, River Forest, Riverside, Rogers Park):** closed September 1; evidence due September 11.
- **Group 2 (Berwyn, Cicero, Elk Grove, Lakeview, Maine, Palos):** closed September 29; evidence due October 9.
Ten days after close, both times. The hearing is for argument. Documents handed up at the hearing are late.
The missed hearing
Rule 13: "Failure of a party to appear on the date and time specified in the notice of hearing shall constitute a waiver of the right to an oral argument." The file is still decided on the record. But the slot is spent, and for a firm at the 45 cap, that is two losses in one: the file lost its argument and another file lost its chance at one.
Hearing notices for different groups can land in the same week. A paralegal's docket should show hearing dates by attorney code, not just by client, so the eight-per-call limit and calendar conflicts are visible together.
Three days to re-review
Rule 26 sets the re-review window at three days "of the date of the letter from the Board of Review informing the appellant of the Board of Review's decision." From the letter's date, not receipt. The rule adds that re-review "is not the place to raise a new legal theory or factual argument," and the only late evidence the Board will consider is evidence it asked for itself.
So re-review is a request to re-read a record that already exists, and the three days are for pointing precisely at what the decision missed.
The paralegal's version
- **At filing:** assign attorney codes with both caps in view. Flag any group where one code carries more than 45 hearing-eligible files.
- **At township close:** calendar the Board's published evidence date. Treat it as the last day for every document on every file.
- **At hearing notice:** log date and call by attorney code. Check same-day conflicts across groups.
- **At decision:** the three-day clock starts on the letter's date. Route the decision and the original evidence packet to the responsible attorney the day it arrives.
The numbers behind this article
Decision counts are Censum's tabulation of the Cook County Board of Review Appeal Decision History dataset (county open data, 7pny-nedm), copy dated May 20, 2026; counts are PIN-level decisions and tax year 2025 is incomplete in that copy. The two-percent example is illustrative arithmetic, not a measured firm. Censum is independent and not affiliated with any county office. Censum's docket layer counts files by attorney code against the Board's caps before the code is committed on a complaint.
Sources
- Cook County Board of Review Official Rules
- Board of Review Dates and Deadlines
- Censum tabulation of the Cook County Board of Review Appeal Decision History dataset (Cook County open data, 7pny-nedm), copy dated May 20, 2026; PIN-level decisions; tax year 2025 incomplete in that copy.
- Rules cited: Cook County Board of Review Official Rules 12, 13, 14, 26; Board of Review "Dates and Deadlines 2026 Session" schedule.
FAQ
What does Rule 12 actually cap?
Eight dockets per hearing call and a maximum of 45 hearings per group, per attorney code. The eight-per-call limit is one session; the 45-per-group limit is the whole township window.
When is evidence due after a township closes?
Rule 14 ties the deadline to the Board's published period after close. For 2026 Group 1, evidence was due September 11 after a September 1 close; Group 2 closes September 29 with evidence due October 9 - ten days both times.
Does missing a hearing end the appeal?
Rule 13 says failure to appear waives oral argument; the file is still decided on the record. At the 45 cap, that also spends a slot another file could have used.
Does Censum file or represent clients?
No. Censum LLC is independent property-tax intelligence and docket tooling. It is not a law firm. The attorney files and makes every legal judgment.
Next step
Look up the firm book by attorney code and township group. Flag any group over 45 hearing-eligible files, calendar the Board's published evidence date, and route decision letters the day they arrive so the three-day re-review clock is usable.
Censum LLC is independent and not affiliated with Cook County or any government agency.