What Clauses Are Illegal in a Chicago Lease?

In Chicago, a lease clause isn't valid just because both parties signed it. The RLTO establishes rights that tenants cannot waive and that landlords cannot contractually remove. A clause that purports to take away one of those rights doesn't become enforceable because it's in a written document agreed to by both parties. It's void. In some cases, including it in the first place is itself a violation.

This surprises landlords who believe that a signed lease represents a binding mutual agreement. It does — except for the parts that conflict with the RLTO, which don't bind anyone.

Quick Answer

• The Chicago RLTO voids any lease clause that removes, limits, or waives a right the ordinance grants to tenants.
• Common illegal clauses include provisions waiving the landlord's habitability obligations, eliminating the tenant's right to proper notice before entry, and restricting security deposit return rights.
• If you're not sure whether your current lease contains clauses that don't hold up under the RLTO, Dweller IQ can help you identify the issues before they surface in a dispute.

Why Template Leases Are Dangerous in Chicago

Most problematic lease clauses don't come from bad intentions. They come from template leases written for a general national audience, or for other states, that haven't been reviewed for Chicago compliance. What's standard in a lease in Texas or Florida can be flatly illegal in Chicago.

A landlord who downloads a generic lease and uses it without Chicago-specific review is almost certainly operating with at least some clauses that the RLTO doesn't recognize — or actively prohibits. They may not find that out until the clause gets tested in the worst possible context: a tenant dispute, an eviction hearing, or a security deposit lawsuit.

The Categories of Illegal Clauses

The RLTO specifically prohibits clauses that waive or modify tenant rights in certain categories.

Habitability waiver clauses — language stating the tenant accepts the unit "as is" and waives the right to repairs or a habitable condition — are void. The landlord's habitability obligations exist regardless of what the lease says.

Entry permission clauses — language giving the landlord the right to enter with shorter notice than the RLTO requires, or with no notice at all — don't override the ordinance's requirements. A tenant's right to proper notice before entry cannot be contracted away.

Security deposit limitation clauses — language restricting how the security deposit can be returned, or waiving the interest requirement, or limiting the tenant's ability to dispute deductions — conflict with the RLTO's specific security deposit rules and don't hold up.

Eviction shortcut clauses — language purporting to allow the landlord to remove the tenant's belongings, change the locks, or otherwise take self-help action — are void and potentially expose the landlord to liability.

Attorney's fee clauses that only benefit the landlord, late fee structures that exceed RLTO limits, and lease clauses that waive the tenant's right to a jury trial are other common examples of provisions that don't survive RLTO scrutiny.

"A signed lease with an illegal clause isn't a contract. It's a document with a trap in it waiting to go off."

Including an Illegal Clause Isn't Neutral

A void clause doesn't just fail to work. In some cases, a landlord who included a clause the RLTO specifically prohibits has done something that affects the tenant's remedies. It can be evidence of bad faith. It can give rise to a claim the tenant wouldn't otherwise have had.

A lease that's full of illegal clauses that never get triggered isn't harmless. It's a collection of future problems waiting for the right moment.

Getting the Lease Right from the Start

The most efficient way to avoid illegal lease clauses is to have the lease reviewed against the RLTO before it's used, not after it's signed by a tenant who later finds an attorney. The Chicago Lease Laws overview for landlords covers the full scope of what Chicago requires and prohibits. Dweller IQ can help you think through specific clauses in your lease and whether they hold up before a tenant makes them the center of a dispute.

Key Takeaways

• The RLTO voids any lease clause that removes or limits a right the ordinance grants to tenants — a tenant's signature doesn't make an illegal clause enforceable
• Habitability waivers, entry permission expansions, and security deposit limitation clauses are among the most common illegal provisions
• Template leases written for other markets frequently include clauses that are illegal under the Chicago RLTO
• Including a prohibited clause isn't neutral — it can generate tenant claims the landlord wouldn't otherwise face
• Attorney's fee-only provisions, excess late fee structures, and self-help eviction clauses are other common illegalities
• Having a lease reviewed against the RLTO before it's used is cheaper than resolving the dispute that follows when an illegal clause gets tested