It is the first question most owners ask, and the answer is not "always" or "never." It depends on one thing the marketing pages rarely make clear: **who, or what, holds title to the property.** Get that wrong and you either pay for help you didn't need — or file an appeal that gets dismissed because you weren't allowed to file it yourself.
Quick Answer
It depends on who owns the property. An individual can file their own Cook County appeal at both the Assessor and the Board of Review. But if the property is held by an LLC, corporation, trust, or condo association, Illinois law requires a licensed attorney at the Board of Review — entities can't self-represent there.
Two levels, two different rules
A Cook County assessment appeal has two separate venues, and they have opposite rules about representation.
**The Assessor's Office (first level).** Anyone can file their own appeal here — and that includes business entities. The Cook County Assessor's official appeal rules require no one to be represented by an attorney or agent, whether the owner is an individual or an LLC. If your only move is an Assessor appeal, you can do it yourself.
**The Board of Review (second level).** This is where it changes. Under the Board of Review's official rules, only **licensed attorneys** and **individual taxpayers representing property titled in their own name** may practice before the Board. An individual can still go pro se. But a **corporation, LLC, or condominium association** — and, by the same logic, any other owner that is not an individual holding title in their own name, such as a partnership or trust — **cannot represent itself**; it must be represented by a licensed attorney, and a non-attorney may not stand in for it. The Board even has a dedicated attorney-authorization form for it.
So the honest answer to "do I need a lawyer?" is: **not to file with the Assessor, and not as an individual homeowner — but yes, the moment an entity goes to the Board of Review.**
Who this actually catches
This rule quietly defines who *must* work through an attorney, and it is a large, valuable slice of the market:
- **Commercial and industrial property** — almost always held in an LLC or corporation.
- **Investors and landlords** — rental and multi-unit property titled to an entity.
- **Trust-held property** — common in estate planning.
- **Condo associations** appealing on behalf of the building.
If your property sits in any of those, the Assessor is optional DIY territory, but a serious appeal that goes to the Board of Review is **attorney-required, not attorney-optional.** And the Board is often where the most consequential commercial reductions happen — which is exactly why the high-volume Cook County appeal work runs through law firms, not self-filers.
What to do with this
The practical sequence for an entity-owned parcel:
- **Confirm how title is held** — your name, or an LLC/corp/trust/association. That single fact decides everything below.
- **Decide the venue** — an Assessor-only appeal you can run yourself; a Board of Review appeal for an entity needs counsel.
- **Check whether the value is even worth contesting** before you engage anyone — the appeal only has a basis if the assessed value, the record, or the uniformity is actually off.
- **Line up representation early** — Board of Review windows are short, township-specific, and do not get extended.
Censum is built for that path: look up the parcel, see where its assessed value stands and where it sits in the township calendar, and — for entity-owned property that needs counsel at the Board — get the appeal prepared 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** 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. Nothing here is legal advice.
FAQ
Can I appeal my own home without a lawyer?
Yes. An individual who owns and holds title to their property in their own name can file pro se at both the Cook County Assessor and the Board of Review.
My property is in an LLC. Can I file the appeal myself?
At the Assessor's Office, yes. At the Board of Review, no — an LLC (or corporation, trust, or association) cannot represent itself and must be represented by a licensed attorney.
Why does the Board of Review require an attorney for entities but the Assessor doesn't?
They operate under different rules. The Assessor allows any party to file pro se; the Board of Review limits practice before it to licensed attorneys and individuals representing their own property, because a non-lawyer representing an entity is treated as the unauthorized practice of law.
Is Censum a law firm?
No. Censum is an independent intelligence and filing-rails vendor — the flat-fee software appeals are prepared on. It prepares appeals and supports the attorney representation entities need at the Board, but 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.
Does it cost more to appeal because I need an attorney?
Not necessarily, and the fee model matters more than the fact of representation. The point of this page is simply that for entity-owned property, attorney representation at the Board of Review is a legal requirement, not an upsell — so plan for it from the start.
Next step
Start with the parcel, not the paperwork: check where your assessed value stands and whether the value is worth contesting, and — if it's entity-owned and headed to the Board of Review — get it routed to the representation the Board requires. Censum is independent and is not affiliated with Cook County.