One Roommate Left, One Stayed. Now What?
Both roommates still owe the full rent. A well-drafted lease makes co-tenants jointly and severally liable. That means each tenant owes 100 percent, not half. The roommate who left stays on the hook until the lease ends or you release that person in writing. Never sign a release for free. Your real options with the stayer: add a co-signer or replacement tenant, sign a new lease the stayer can actually afford, or serve a 5-day notice and start the nonpayment path.
The Text Message That Starts It
I am a Chicago eviction attorney. This intake arrives at my Chicago eviction practice every month. Two names on the lease. Then one breakup, one job transfer, or one fight over dishes. One roommate loads a truck and disappears. The other one stays. A few days later, the stayer sends you the text. "Mike moved out. I will pay my half from now on."
That text sounds reasonable. It is not. Half the rent is not the rent. And Mike did not leave the lease when he left the unit. Most landlords make their worst mistakes in the first two weeks after that text. They release the leaver by accident. They accept half payments. They take a set of keys and think the problem shrank. This page walks through who owes what, the release trap, your three real options with the stayer, and what happens if the file heads to eviction court.
Who Owes the Rent Now
Start with your lease, not with fairness. A well-drafted lease makes co-tenants jointly and severally liable. That is contract language, and it does one simple thing. Each tenant owes the entire rent, every month, for the entire term. Not a share. Not a split. The lease does not care who sleeps in which bedroom or who moved to Naperville. I put that clause in every lease my office drafts, and my guide to Chicago lease agreements explains the other clauses that belong next to it.
So the roommate who left usually still owes the rent. The obligation ends two ways. The lease term ends, or you release that person in writing. Nothing else does it. Not the U-Haul. Not the forwarding address. Not the stayer's promise to cover things.
Now check the other side of the coin. This rule lives in the contract, not in a statute. If your lease lacks the clause, or if your roommates are on separate leases for separate bedrooms, the analysis changes. Read the document before you demand anything. If the language is thin, get advice first.
One more housekeeping point. Do not refund any part of the security deposit to the leaver. The deposit secures the whole tenancy, not one tenant's share of it. My rule is simple. The deposit belongs to whoever paid it. If the leaver paid the deposit, the leaver has a right to its return once the move-out is complete. If the stayer paid it, the leaver has no right of return. How the two of them settle up is an indemnity question between roommates. It is not your problem to referee.
"Sure, you are off the lease." A casual text can be read as a release.
"Just pay your half for now." You invited a partial payment problem.
"Drop your keys in the mailbox." Keys from one roommate are not possession of the unit.
The Release Trap
The leaver will ask for a release. Sometimes politely. Sometimes through a parent, and sometimes through a lawyer. Here is the frame I give clients. A release is not paperwork. A release is you giving away a person who owes you the full rent. You would not tear up an IOU as a favor. Do not tear up this one.
That does not mean you never release anyone. It means you trade. A release has a price, and the price is something that protects the income stream you are giving up. Reasonable trades look like this:
- A qualified replacement tenant. A new co-tenant who passes your full screening signs on before the leaver signs off.
- A new co-signer or guarantor. The stayer's parent or another adult with real income backstops the lease.
- Money. The leaver pays the arrears, or pays a negotiated amount toward the remaining term, in exchange for the release.
Whatever the trade, put it in a written release with specific terms. Who is released, from what, as of what date, and for what consideration. Have a lawyer draft it or at least review it. And guard your thumbs. Assume every text you send will be an exhibit some day. A message that reads like forgiveness can be argued as a release, even when you never meant it that way.
Watch the partial-surrender trap too. The leaver hands you keys and feels finished. You are not finished, and neither is the leaver. The stayer still holds the unit, so you do not have possession. The lease still runs, so the leaver still owes rent. Taking keys from one roommate changes almost nothing by itself. Log the date, keep the keys, and say nothing that sounds like a goodbye to the lease.
True abandonment is a different animal. Sometimes both roommates vanish and the unit sits dark. Here is the process I use:
- You discover the tenant has not been at the property for 14 or more days.
- You post a notice on the door: call me within 10 days to tell me you still live here.
- You wait until you have notice the tenant has not been in the property for 32 days total.
- Belongings worth anything go to a storage unit. Hold them for 90 days. Then publish a notice of auction.
- Belongings that are worthless trash, with no furniture and nothing fine, can simply be disposed of.
Your Three Options With the Stayer
The stayer alone often cannot cover the rent. That is the honest center of this problem. Two incomes qualified for the unit. One income remains. Sympathy does not pay the mortgage, so pick a structure on purpose. You have three.
Add a co-signer or a replacement co-tenant
Keep the current lease alive. Add security to it. A guarantor with verified income signs a guaranty, or a screened replacement roommate signs onto the lease. Screen the new person exactly like a fresh applicant. Full application, income proof, background check. Put the addition in a written lease amendment. Release the leaver only if that was the trade, and only in the same signed document.
Sign a new lease with the stayer alone
Sometimes the stayer can genuinely afford the unit. Prove it with numbers. Verify income against the full rent, not half. If the stayer qualifies, sign a new lease in the stayer's name and end the old one in writing. This is the clean break. It also releases the leaver, so price that into the deal. Illinois law calls a full swap of tenants a novation. It has four elements: a valid original obligation, an agreement of all the parties to a new contract, extinguishment of the old contract, and a valid new contract. Phillips and Arnold, Inc. v. Frederick J. Borgsmiller, Inc., 123 Ill. App. 3d 95, 100 (5th Dist. 1984). Courts never presume it. The departing tenant has to prove it. Accepting rent from the one who stayed does not release the one who left. Roth v. Dillavou, 359 Ill. App. 3d 1023, 1030 (2d Dist. 2005), reversed a trial court for finding exactly that kind of release with no proof of a new agreement. The flip side matters too. If I sign a brand new lease with the stayer, I may extinguish the old one without meaning to. So the paper does the work. The writing states that the original lease stays in force, that the leaver is released only on stated conditions, and that accepting rent from any occupant is not a waiver, release, or novation. If the stayer does not qualify, do not sign. A new lease with an unqualified tenant converts a temporary problem into a permanent one.
Take the nonpayment path
Sometimes nobody qualifies, nobody guarantees, and the half payments start. Then you enforce the lease you have. Demand the full rent from the tenants you have, and treat a shortfall as nonpayment. The 5-day notice starts that clock. If instead the real problem is a lease breach, like an unapproved replacement roommate who moved into the empty bedroom, the 10-day notice is the tool. And on a month-to-month arrangement, a 30-day notice can end the tenancy entirely. Pick the notice that matches the facts, and serve it correctly.
Most of these files never see a courtroom. A stayer who communicates, a leaver who negotiates, and a landlord who trades the release for real security usually solve this in two documents. Push for that outcome first. Prepare for the other one.
If It Heads to Eviction
Illinois evictions run under Article IX of the Code of Civil Procedure, 735 ILCS 5. Notice first, lawsuit second, sheriff last. My Illinois eviction process guide walks the whole road. Two points matter more in a roommate case than anywhere else.
First, mind the money while the case is pending. The stayer will offer half the rent, because half is what the stayer has. A partial payment after a 5-day notice is one of the most dangerous deposits in landlord law, and whether it hurts you depends on your notice language. Do not cash anything until you read my guide on accepting partial rent after a 5-day notice. My own rule is simple. Full payment or nothing.
Second, name everyone. I name every adult on the lease and every adult living in the unit, and I add Unknown Occupants to the caption. That includes the roommate who moved out, when that roommate is still on the lease. The possession order then covers everyone the sheriff finds at the door, and the money judgment can follow the person who left. Roommate cases also breed the exact problem I wrote about separately: the new boyfriend or the Craigslist replacement who quietly took the empty bedroom. My guide to the unauthorized occupant covers the naming rules, the Unknown Occupants statute, and the 10-day notice for that breach. Read it before you file. A caption done right the first time saves you a second trip to the courthouse.
Frequently Asked Questions
Does a roommate who moved out still owe rent in Illinois?
Usually yes. A well-drafted lease makes co-tenants jointly and severally liable. Each tenant owes the full rent for the full term. Moving out does not change that. Only the end of the lease or a written release from the landlord ends the obligation. Check your lease for the clause first. If your lease lacks it, get legal advice before you demand anything.
Should I release the roommate who left from the lease?
Not for free. A release gives up a person who owes you the full rent. Trade it for something real: a qualified replacement tenant, a new co-signer, or payment of the arrears. Put the release in writing and make it specific. Watch your texts. A casual message that says you are off the lease can be read as a release.
Can the remaining roommate take over the lease alone?
Only if you agree, and only if the numbers work. Screen the stayer like a brand new applicant. Verify income against the full rent, not half. If the stayer qualifies, sign a new lease and document the change. If the stayer cannot afford the unit alone, do not sign. A new lease with an unqualified tenant locks in the problem.
Do I name the roommate who moved out in an eviction case?
In my practice, yes, when that roommate is still on the lease. I name every adult on the lease and every adult in the unit, plus Unknown Occupants. The eviction order then covers everyone the sheriff finds at the door, and the money judgment can reach the person who left. My unauthorized occupant guide explains the naming rules in detail.
"Two names on a lease means two people who owe you the full rent. I never let a client give one away for free."
Flat-Fee Help: Release, Re-Lease, or Evict. Notice Through Trial.
Send me the lease and both names. Tell me who left, who stayed, and what has been paid. On a free 30-minute call, I will tell you whether to trade the release, sign a new lease with the stayer, or serve the 5-day notice. Flat eviction fees run $1,600 in Chicago, $895 in DuPage, and $995 in Kane, contested trial included. Suburban Cook runs $895 to $1,250 by district. Court filing fees of $300 to $389 are the only cost on top.
All consultations are confidential.