If you sit on a condo board, the question lands every reassessment year: can the association appeal the building's taxes itself, or does it need a lawyer? The short version surprises a lot of boards. An individual unit owner can file their own appeal. But the association — because it is a legal entity — cannot represent itself at the Board of Review and must use a licensed attorney.
Quick Answer
A condo association is a legal entity, so when it appeals for the whole building at the Cook County Board of Review, it cannot self-represent and must use a licensed attorney. An individual unit owner can still file pro se for their own unit. Each unit has its own PIN; the association files across them.
A condo is many parcels, not one
Start with how Cook County sees the building, because it changes who appeals what.
A condominium is **not** one tax parcel. Each unit has its own **Property Index Number (PIN)** and is assessed individually, and deeded parking spaces and storage units often carry their own separate PINs on top of that. Residential condos are **Class 2** property, assessed at **10% of market value** — the same residential level as a single-family home, not the 25% commercial level.
That structure creates two different paths:
- **A single unit owner** can appeal their own unit's assessment, against their own PIN.
- **The association** can appeal building-wide, across all the unit PINs at once, when the issue is the value of the building as a whole or the percentage-of-ownership allocation across units.
Building-wide appeals are common and often the more efficient route, because the value question usually affects every unit the same way. But the moment the association files as the association, a representation rule kicks in.
The rule: the association is an entity, so the Board requires an attorney
Cook County runs a two-level appeal, and the representation rule is different at each level.
**At the Assessor's Office (first level),** the Cook County Assessor's official appeal rules require no one to be represented — an individual owner can file pro se, and so can an entity. If your only step is an Assessor appeal, an association can technically file there without counsel.
**At the Board of Review (second level),** it changes. Under the Board's official rules, only **licensed attorneys** and **individual taxpayers representing property titled in their own name** may practice before the Board. The rule is explicit that entities are not in that pro-se group: *"Other taxpayers, including but not limited to entities such as corporations, LLCs, condominium associations and the like, must be represented by an attorney."* A non-attorney board member, property manager, or volunteer cannot stand in for the association.
So the honest, exact answer is this: **an individual unit owner can self-file for their own unit at both levels, but a condominium association appealing on behalf of the building cannot self-represent at the Board of Review — it must use a licensed attorney.** This is the Board's rule, not anyone's sales pitch.
What the association has to bring
A building-wide condo appeal is also a paperwork problem, which is part of why the work tends to run through counsel. A filing on behalf of the association generally has to list **all the unit PINs** in the association (in order), and include the **Declaration or most recent amendment** showing each unit's percentage of ownership — whether the argument is a correction to those percentages or a valuation reduction for the whole building. Individual owners who would rather go their own way can typically opt out and appeal only their own unit.
None of that decides whether an appeal is *worth* filing. An appeal only has a basis if the assessed value, the property record, or the uniformity across comparable units is actually off — and "a unit in my building got a reduction" is not, by itself, a reason your unit's number is wrong.
Why condos are worth a second look this cycle
Two data points are worth knowing before the window closes.
First, exemptions land unevenly on condos. In our aggregation of 2024 Cook County records, about **57% of condo parcels carried no homeowner exemption** — much of that legitimately rental or investor-owned — versus roughly **23% of single-family parcels**. A homeowner exemption is a property-level fact that either sits on the right PIN or it does not, and on the wrong PIN it is real money in the wrong place. For an owner-occupied unit, that is the first thing to check, separate from any appeal.
Second, the calendar does not wait. Cook County's appeal windows are **per-township and staggered** — roughly 30 days from when a township's reassessment notices mail, with a hard last-file date printed on the notice and **no extension.** Two condo buildings a few blocks apart can be on different clocks. Miss the Assessor window and the next opening is the Board of Review's separate, later window — which, for the association, is the attorney-required one.
What to do with this
If you're a board member or a unit owner, the practical sequence:
- **Find the right PIN(s).** A unit owner needs their own unit PIN (and any parking/storage PINs). An association needs the full list across the building.
- **Check the value and the exemptions first.** Confirm where the assessed value stands and that any homeowner or senior exemption is attached to the correct PIN — before engaging anyone.
- **Decide who files.** A single owner can go it alone for their own unit. A building-wide association appeal at the Board of Review needs a licensed attorney.
- **Watch the township window.** It's short, township-specific, and not extendable — line up representation early if the association is going to the Board.
Censum is built for that path: look up the unit or building PINs, see where the assessed value sits and where the township is in the calendar, and — for an association appeal that needs counsel at the Board of Review — get the appeal prepared and ready for the attorney representation the Board requires, through Censum's filing rails, on flat pricing. Censum is an independent intelligence and filing-rails vendor — the software the appeal is prepared on; it is **not** the county, **not** a law firm, and does not provide legal representation. The licensed attorney the Board requires is engaged and paid directly for the legal work, and Censum never takes a share of that fee.
FAQ
Can a condo association appeal its property taxes itself, without a lawyer?
Not at the Board of Review. A condominium association is a legal entity, and the Board's official rules limit pro-se practice to individual taxpayers representing property titled in their own name. An association — like a corporation, LLC, or trust — must be represented by a licensed attorney at the Board. At the Assessor's first-level appeal, no representation is required.
Can I appeal just my own condo unit without involving the association?
Yes. An individual who owns and holds title to their unit in their own name can file pro se for that unit at both the Assessor and the Board of Review, and can typically opt out of an association-wide filing to appeal only their own unit(s).
Why does each condo unit have its own PIN?
Cook County assesses condominiums unit by unit, so every unit carries its own Property Index Number, and deeded parking spaces and storage often have separate PINs as well. A building-wide association appeal works across all of those unit PINs; an individual appeal works against a single unit's PIN.
How are condos assessed in Cook County?
Residential condominiums are Class 2 property, assessed at 10% of market value — the same residential assessment level as a single-family home, not the 25% level used for commercial property.
Is Censum a law firm, and can it represent our association?
No. Censum is an independent property-tax intelligence and filing-rails vendor — flat-fee software, not the county, not government-affiliated, and not a law firm. It can prepare a building-wide appeal and get it ready for the attorney representation the Board requires; the attorney is engaged and paid directly for the legal work and Censum never takes a share of that fee. It does not practice law, provide legal representation, or give legal or tax advice.
Next step
Start with the PIN, not the paperwork: look up the unit or building parcels, see where the assessed value stands and whether the exemptions are on the right PIN, and — if the association is headed to the Board of Review — get the appeal prepared for the attorney representation the Board requires. Censum is independent and is not affiliated with Cook County.