Illinois 10-Day Notice for Lease Violations: What It Covers, How to Serve It, When to Skip It
Part of the guide: Illinois Eviction Process, Step by Step.
A landlord called me last week. His tenant moved a large dog into a unit with a no-pets clause. He wanted the dog out, and he wanted it out fast.
A lease violation is not a rent problem. The tenant paid. The tenant broke a different promise instead. Illinois makes me give that tenant one written chance to fix it before I can file.
Serve the 10-day notice when a tenant breaks a lease term that has nothing to do with rent. 735 ILCS 5/9-210 lets a landlord act once the tenant defaults on that term. The notice must describe the breach and give the tenant 10 days to fix it or move out. In Chicago, Municipal Code 5-12-130(b) makes that cure right explicit. Cure the breach in time and the notice is spent. I cannot file on a notice the tenant already fixed. Serve it one of the ways 735 ILCS 5/9-211 allows.
What the 10-Day Notice Covers
735 ILCS 5/9-210 lets me act once a tenant defaults on a lease term. The statute does not name rent. I use the 5-day notice for rent and the 10-day notice for everything else in the lease.
Typical breaches: an unauthorized pet, an occupant who is not on the lease, damage to the unit, or a business run out of a residential lease. The notice must describe the breach. A notice that just says "you are violating the lease" invites dismissal.
Chicago adds a rule state law does not spell out. Municipal Code 5-12-130(b) gives the tenant an explicit right to cure the breach within the notice period. Outside Chicago, curing still ends the case for that notice. 735 ILCS 5/9-210 only lets me act "when default is made." Fix the default, and there is nothing left for the notice to enforce.
How to Write It
Name the lease clause the tenant broke. Describe the conduct with a date. "On March 3, an unauthorized dog was observed in the unit in violation of Paragraph 9" holds up in court. "You are violating the lease" does not.
Give the tenant the full 10 days that 735 ILCS 5/9-210 requires to fix the breach or move out. Count the ten days by excluding the day of service and including the last day, under the Statute on Statutes, 5 ILCS 70/1.11.
I write one notice for each problem I am solving. A notice about a lease violation is not the vehicle for a rent demand. If you combine them anyway, you travel at the rate of the slowest notice. The tenant gets ten days to cure the rent too.
How to Serve It
735 ILCS 5/9-211 sets the allowed methods for serving any eviction notice, including the 10-day notice. I cover service step by step, with the mistakes that get a case dismissed, on how to serve an eviction notice yourself.
Cure the breach, and the notice is spent. 735 ILCS 5/9-210 only lets me act on a default that still exists. Fix the breach inside the 10 days, and there is no default left to enforce. In Chicago, 5-12-130(b) makes that cure right explicit. If the tenant cures on day nine and breaks the same rule again next month, I start over with a new notice.
Some violations are hard to prove under a 10-day notice. Hoarding is the clearest example. The standard is vague, and the tenant will say the unit is fine. If the tenant is month to month, I usually skip the 10-day notice and terminate the tenancy instead. That costs about 20 extra days and removes the argument entirely.
Cases From My Files
The Lawn Equipment That Blighted a Yard
In suburban Cook County a tenant piled lawn equipment in the yard and left it there all winter. We moved on a 10-day notice for blighting the property. His only testimony was that he had moved some of the equipment since then. The court ordered him out. That worked because the blight was outdoors, photographed, and visible to the whole block.
The Kane County Trial in Two Languages
In 2024 I tried a 10-day notice case in Kane County. The tenant had moved people in at will and was running an unlicensed boarding house. My client spoke limited English. The tenant spoke none. The court provides interpreters. My client chose to testify in English anyway, because he feared the interpreter would tip the tenant on how to answer. It took me about 40 minutes to get the condition of the property into the record through his second language. Then the tenant told the judge he did not respect a woman on the bench. We won.
What I Have to Prove at Trial
If the case goes to trial, I have to prove four things.
- The landlord has the superior right to possession.
- The notice was served in one of the ways 735 ILCS 5/9-211 allows.
- The tenant did not cure the breach named in the notice.
- The full notice period ran before the case was filed.
If I prove those four by a preponderance of the evidence, the landlord gets the order.
"Ready to Start Your Eviction?"
Free notice prep with every eviction case.
Don't risk a dismissed case from a defective notice. We prepare every notice as part of a flat-fee eviction engagement.
All consultations are confidential.
Download a Free 10-Day Notice Template
This is the same form I file for my own clients. Fill it out carefully, follow the service rules above, and keep copies of everything you send.
Free Download
Get the Exact Eviction Notices We File, Free
The Illinois Supreme Court standardized forms we serve for our own clients. Enter your email and all three download instantly.
- ✓ 5-Day Notice: Non-Payment of Rent
- ✓ 10-Day Notice: Lease Violation
- ✓ 30-Day Notice: Non-Renewal of Tenancy
Your forms are ready:
Serve the wrong notice, or serve it the wrong way, and the case restarts from day one. If you'd rather have it done right, call (630) 839-9195.
Frequently Asked Questions
735 ILCS 5/9-210 covers any default on a lease term. In practice that means an unauthorized pet, an occupant who is not on the lease, damage to the unit, or running a business out of a residential unit. The notice must describe the specific breach, not just say the tenant is violating the lease.
Yes, for the 10 days the notice runs. 735 ILCS 5/9-210 only lets me act while a default exists, so a cured breach leaves nothing left to enforce. In Chicago, Municipal Code 5-12-130(b) makes that cure right explicit.
735 ILCS 5/9-211 sets the allowed methods. I walk through service step by step, including the mistakes that get a case dismissed, on my page about how to serve an eviction notice yourself.
A cured notice is spent. If the same violation happens again, I have to serve a new 10-day notice under 735 ILCS 5/9-210 describing the new breach.
Some violations are hard to prove under a vague standard. Hoarding is the clearest example. For a month to month tenant, I sometimes terminate the tenancy instead of fighting over whether the breach happened. That costs about 20 extra days and removes the argument.
You do not need one, but a defective notice means starting over. We prepare 10-day notices as part of our flat-fee eviction engagement, and offer free notice preparation. Most landlords who call me already tried the DIY route once.