Subletting and roommates in Skokie: who can move in, who stays liable, and what sharing actually saves

Illinois has no subletting statute — this page can now say so from the text rather than from memory: every section of the state's Landlord and Tenant Act was read today, and none of them is about subleases. So the first answer lives in your lease, and the state bar's guide states the default when the lease is silent. Skokie also sits in suburban Cook County, whose 2021 Residential Tenant and Landlord Ordinance has exactly one sentence on subleases — inside its abandonment paragraph, as part of the landlord's duty to re-rent a unit a tenant has abandoned, not as a general right to sublet. This page quotes that paragraph, the ordinance's test for who it covers, its ten-day notice-and-cure rule for a sublet that breaks the lease, the fee rules that reach a subtenant's screening, the 1984 state mitigation statute, and the liability traps of shared apartments — and then prices what splitting a Skokie apartment saves at today's fair-market rents. Every legal claim links to its source, and the sources say what the page says they say.

What this page is: the rules on subletting and sharing a Skokie apartment, each linked to its official source, plus the money side at today's fair-market rents. It is not legal advice — leases differ, and when it matters, read the linked source or use the free legal help on our tenant rights page.

Start with the lease: the Act has no sublease section, and the bar guide states the default

No Illinois statute grants or forbids subletting. That used to be an assertion; today it is a reading. The Landlord and Tenant Act, 765 ILCS 705, has thirteen sections (0.01, 1, 3, 3.5, 4, 5, 10, 15, 16, 20, 25, 30 and 35), and the only one that uses the word is the flood-disclosure section, in a caveat: “This Section may not be interpreted to permit the renting, leasing, or subleasing of lower-level units in a municipality if the municipality does not permit the renting, leasing, or subleasing of such units.” The eviction article of the Code of Civil Procedure (735 ILCS 5/9-201 through 9-218, read for our moving-out page) has none either. What fills the gap is the lease and the common law, and the Illinois State Bar Association's guide states both in four sentences: “Often, written leases prohibit the tenant from subletting the premises without the written consent of the landlord. Such consent cannot be unreasonably withheld, but the prohibition is enforceable under the law. If there is no such prohibition, then a tenant may sublease or assign their lease to another. In such cases, however, the tenant will remain responsible to the landlord unless the landlord releases the original tenant.” Three things to take from that. The default favors you — silence means you may sublet. A consent clause is enforceable, so the consent, and any conditions on it, belong in writing before your subtenant moves a single box. And the guide's middle clause — consent “cannot be unreasonably withheld” — is the guide's statement; it cites no statute or decision for it and this page has read none, so treat it as the bar's view of the common law, not as a section you can point to. Until today this page said “virtually every printed lease” bars sublets; the guide's word is “Often”. Read yours. Source: Illinois State Bar Association — Guide to landlord-tenant law (“Subletting or Assigning the Lease”) · 765 ILCS 705/25 (Landlord and Tenant Act — flood disclosure, subsection (f)) · 765 ILCS 705/0.01 (Landlord and Tenant Act — short title)

Subletting against the lease in a covered building: ten days' notice, and the right to cure (Sec. 42-809(B)(1))

If your lease requires consent and you sublet without it, that is a lease violation, and in buildings the ordinance covers the landlord's route is written out. Sec. 42-809(B)(1): “If the landlord alleges that the tenant is not in material compliance with a rental agreement or the obligations in section 42-807, the landlord may deliver written notice to the tenant specifying the acts and omissions constituting the alleged breach.” The notice “may provide that the rental agreement will terminate upon a date no less than 10 days after the date of the written notice. The tenant shall have the amount of time specified in the written notice to remedy any alleged breach by the tenant prior to the date of termination.” Only “If the breach is not remedied” may the landlord “file an eviction to terminate the rental agreement, as provided in the written notice”, and the landlord “may recover damages and obtain injunctive relief for any material noncompliance by the tenant with the rental agreement”. The notice has a shelf life: “If the landlord does not file an eviction action within 30 days after the notification of termination or the end of the next rental period, whichever is longer, then the landlord's written notice shall be deemed withdrawn and the rental agreement shall remain in full force and effect.” So an unauthorized subtenant is curable — the cure is ending the sublet, or getting the consent — within the days the notice gives you; the word “material” is the ordinance's, and whether a given sublet is a material breach is a question this page cites no decision on. Ask for consent first and none of this section is needed. Source: Cook County RTLO — ordinance text as posted by the county (PDF, dated January 2021), Sec. 42-809(B)(1)

Who the ordinance covers: the test in Sec. 42-801(D), and the four municipalities it does not name

The ordinance never lists the towns it skips. Its scope clause, Sec. 42-801(D), regulates “all residential buildings and structures that exist or are erected, constructed, altered, demolished, or relocated within the boundaries of Cook County, excluding those cities, villages, and incorporated towns that maintain promulgated regulations that establish both the rights and obligations of both the tenant and the landlord in the rental of dwelling units.” To be excluded, a municipality's rules “must contain specific language defining and regulating the relationship between the tenant and landlord, policies protecting and promoting the public health, safety, and welfare of tenants, and remedies under a rental agreement”. Which municipalities meet that test is a reading of their codes, not of the ordinance; Illinois Legal Aid Online's guide says the county ordinance “does not apply to housing in” Chicago, Evanston, Mount Prospect or Oak Park, and lists those four as the Cook County municipalities with landlord-tenant ordinances of their own. Skokie is not among them, and every page on this site treats Skokie as covered. Coverage is then narrowed by building type: Sec. 42-802 excludes, among others, “Residential buildings in which occupancy is limited to six (6) units or less and which are owner-occupied” and an owner's single rented home or condominium on four conditions; the full list, and the lockout rule that reaches most excluded units anyway, is on our tenant-rights page. Source: Cook County RTLO — ordinance text as posted by the county (PDF, dated January 2021), Sec. 42-801(D), Sec. 42-802(A) · Illinois Legal Aid Online — Landlord-tenant laws (suburban Cook County RTLO)

The ordinance's one sentence on subleases: inside the abandonment paragraph, as part of the duty to re-rent (Sec. 42-809(B)(2)(c))

Search the ordinance for the word and it appears once. It is not a right to sublet during your tenancy; it is a duty on the landlord after you have abandoned the unit. The paragraph opens: “The landlord has the right to determine abandonment of the dwelling unit and dispose of property.” Two situations count. (a): “The tenant has provided actual written notice to the landlord indicating the tenant's intention not to return to the dwelling unit.” (b): “All persons entitled under a rental agreement have been absent from the dwelling unit for a period of 32 days, or for one rental period when the rental agreement is for less than a month, and such persons have removed their personal property from the premises and rent for that period is unpaid” — with the escape hatch that a written notice from anyone entitled to occupancy “that a tenant intends to occupy the dwelling unit and make full payments of all amounts due to the landlord” blocks the finding. Then (c): “If the tenant abandons the dwelling unit, the landlord shall make a good faith effort to rent it at a fair rental value. This shall include the acceptance of reasonable subleases.” The county's summary says the landlord “should accept reasonable subleases” and that the duty arises “If a tenant moves prior to the end of the rental agreement”; until today this page used that framing too. The ordinance's trigger is narrower and its verb is stronger: abandonment as defined, and “shall include”. The arithmetic follows the effort. If the landlord re-rents at a fair rental value, “the tenant shall only be liable for the amount by which the rent due from the date of abandonment to the termination of the initial rental agreement exceeds the fair rental value subsequently received by the landlord”; if a good-faith effort fails, “the tenant shall be liable for the rent due for the period of the rental agreement”; and “The tenant shall also be liable for reasonable advertising and redecoration costs incurred by the landlord in re-renting the dwelling unit” — redecoration is a word the summary leaves out. The practical reading for a tenant who is leaving: write the landlord that you will not return (that is trigger (a), and it starts the duty), and hand over the reasonable subtenant in the same letter, with their name and qualifications, so the refusal — if there is one — is on paper. Source: Cook County RTLO — ordinance text as posted by the county (PDF, dated January 2021), Sec. 42-809(B)(2)(a)–(c) · Cook County RTLO — the county's plain-language summary (PDF, May 2021)

The state backstop under every outcome: the 1984 mitigation statute (735 ILCS 5/9-213.1)

Even outside the ordinance, the Code of Civil Procedure has carried a one-sentence duty since the eighties: “After January 1, 1984, a landlord or his or her agent shall take reasonable measures to mitigate the damages recoverable against a defaulting lessee.” The ordinance's sublease sentence is that duty made concrete for covered suburban Cook County buildings; the statute reaches every Illinois residential landlord, including the owner-occupied two-flats the ordinance excludes. Neither text says what a court deducts when a landlord ignored a reasonable subtenant — the statute speaks of damages “recoverable”, which is where the argument happens — and this page has read no decision on it. Document the offer: names, dates, the subtenant's qualifications, the landlord's answer. That record is what a mitigation argument is made of. Source: 735 ILCS 5/9-213.1

Screening your subtenant: the fee rules that reach an applicant (Sec. 42-804(F)(12); 765 ILCS 705/30 and 705/35)

A landlord who consents may screen the person you bring, and none of the texts on this page says a subtenant must be screened more gently than any other applicant. What they do limit is the fee. In covered buildings, Sec. 42-804's prohibited-provisions list ends with paragraph (F)(12): a rental agreement shall not provide that a party “Agrees that the landlord shall not impose a fee in excess of the reasonable cost of that expense, including, but not limited to, credit-check fees and move-in fees. A landlord shall not rename a fee or charge to avoid application of this prohibition.” Read literally the paragraph bans a clause that promises restraint — the drafting is garbled — but the county's summary applies it as a cap, telling landlords to “Charge a move-in fee only that is reasonable and related to the cost of the tenant moving in”, and the remedy for a landlord who “deliberately uses a rental agreement containing any provision known by the landlord to be prohibited” is “actual damages or two (2) months' rent, whichever is greater” (Sec. 42-804(G)) — $4,722 at today's Skokie average. Statewide, two newer sections of the Landlord and Tenant Act apply to anyone screened as a prospective tenant. Since January 1, 2025, Sec. 30: if the applicant brings a reusable tenant screening report “prepared within the previous 30 days by a consumer credit reporting agency at the request and expense of a prospective tenant”, available to the landlord at no cost and covering the criteria the landlord actually uses, “the landlord may not charge the prospective tenant a fee to access the report or an application screening fee.” And from January 1, 2027 (ilga.gov flags the section as carrying text with a delayed effective date), Sec. 35 bans, for leases entered into after that date outside owner-occupied buildings of six units or fewer, “A fee for a rental application, including background checks, in excess of $50” except where a third-party check genuinely costs more and is billed with receipts within 14 days, and “A fee or fine for modification or renewal of a lease agreement.” Whether a landlord's charge for consenting to a sublet is a “modification” fee under that paragraph is a question this page offers no authority on; the words are quoted so you can ask it. Source: Cook County RTLO — ordinance text as posted by the county (PDF, dated January 2021), Sec. 42-804(F)(12), (G) · Cook County RTLO — the county's plain-language summary (PDF, May 2021) · 765 ILCS 705/30 (Landlord and Tenant Act — reusable tenant screening report, eff. Jan. 1, 2025) · 765 ILCS 705/35 (Landlord and Tenant Act — rental fee transparency and limitations, eff. Jan. 1, 2027)

Roommates who signed are each liable for all of it — a lease clause, not a statute, and the release rule

No Illinois statute apportions rent among the people who signed a lease; the Act read for this page has nothing on it. What makes each signer liable for the whole rent is a clause — printed leases commonly make co-tenants “jointly and severally” liable, and if yours does, one roommate's missed month is legally everyone's arrears. Until today this page credited two legal guides for that sentence; neither says it, and it stands here as a description of a common clause, which you should look for in your own lease rather than take from this page. What the bar association's guide does say is the release rule, and it applies to a roommate who leaves as much as to a subtenant: “the tenant will remain responsible to the landlord unless the landlord releases the original tenant. A breach of the sublease will not change the initial relationship between the landlord and tenant.” So a roommate who moves out mid-lease stays on the hook until the landlord releases them — get the release in writing — and an informal replacement changes the beds, not the obligations. Someone who never signed anything is your subtenant or guest, not the landlord's tenant, and the ordinance does not referee roommate splits. A one-page roommate agreement on shares, the deposit and departure terms is the cheapest insurance a shared Skokie apartment can buy. Source: Illinois State Bar Association — Guide to landlord-tenant law (“Subletting or Assigning the Lease”)

Correction, October 9, 2026: until today this page cited two legal guides for statements neither contains. It said “Standard printed leases make co-tenants jointly and severally liable” and credited Illinois Legal Aid Online and the Illinois State Bar Association's guide — neither page says it; the sentence now stands as a description of a common lease clause, with no source claimed. It credited Illinois Legal Aid Online for the default rule that a tenant may sublet when the lease is silent; that page does not say it, the bar association's guide does, and it is now quoted. It said “virtually every printed lease overrides that default” where the guide says “Often”, and it left out the guide's next clause — that a landlord's consent “cannot be unreasonably withheld”. It said the ordinance's re-renting duty applies “If a tenant moves out before the lease ends” — the county summary's framing; the ordinance keys that duty, and its one sentence on subleases, to abandonment as Sec. 42-809(B)(2)(a) and (b) define it, quoted above now. And it stated that “only Chicago, Evanston, Oak Park and Mount Prospect are carved out” of the ordinance as a bare fact: the ordinance names no municipality (its test is in Sec. 42-801(D), quoted above); the four names are Illinois Legal Aid Online's, now attributed. The state's Landlord and Tenant Act was fetched section by section from ilga.gov today and read whole; the ordinance passages on this page were checked word for word against the county's posted text.

The roommate math at today's Skokie fair-market rents

The law above is the fine print; this is why people share. HUD's FY2027 fair-market rents — the federal 40th-percentile gross-rent schedule for Skokie's ZIP codes, utilities included (what FMR is) — priced per person, assuming one person per bedroom:

Read the last column over a year: the two-person split alone keeps about $9,600 per person in Skokie — which is the honest reason every rule on this page gets tested in practice. For how these bedroom-level figures compare with what Skokie renters actually pay, see rent by bedroom size; for what the total means against local pay, the income the rent demands.

Honest caveat: fair-market rents are HUD's 40th-percentile gross rents (rent plus utilities) for typical units — a schedule, not a listing, and your actual split runs off your actual lease. The all-size market average in Skokie is $2,361/month as of August 2026 (methodology).

If the sublet is really an exit

People usually reach for a subtenant because they're leaving. If that's the real question, the useful pages are these: what breaking a Skokie lease actually costs, and the exits the law gives you; how to give proper notice if the lease is at its end or you're month-to-month; the deposit rules for getting your money back on the way out; and whether a cheaper unit beats the arithmetic of sharing — what each Skokie ZIP actually rents for (60077, 60076).

First published August 31, 2026 · Page last updated October 11, 2026 · rent index data through August 2026.