Want to skip straight to checking your own building? Use the RentCheckMe address checker.
Deerfield is a suburban village in Lake County, Illinois, located roughly 25 miles north of downtown Chicago. The community includes a significant renter population in apartment complexes, townhomes, and single-family rentals. Tenants in Deerfield are governed entirely by Illinois state law, as the village has not enacted any local landlord-tenant ordinances beyond what the state requires.
The most common questions Deerfield renters have involve security deposit returns, the eviction process, landlord repair obligations, and protections against retaliatory rent increases or lease terminations. Illinois state statutes — particularly the Security Deposit Return Act (765 ILCS 710), the Rent Control Preemption Act (765 ILCS 720), and the Landlord and Tenant Act (765 ILCS 710 et seq.) — form the backbone of tenant rights in this village.
This article is intended as a general informational resource only and does not constitute legal advice. Laws can change, and individual circumstances vary. If you have a specific legal problem, consult a licensed Illinois attorney or contact a legal aid organization serving Lake County.
Rent Control Status: Prohibited by State Law
Deerfield has no rent control ordinance, and under Illinois law, it cannot enact one. The Illinois Rent Control Preemption Act, codified at 765 ILCS 720/1, expressly prohibits any unit of local government — including home-rule municipalities — from enacting, maintaining, or enforcing any ordinance or resolution that would control or stabilize the rental price of private residential property.
In practical terms, this means your landlord in Deerfield may raise your rent by any amount, at any time, provided they give you proper advance written notice before the increase takes effect — typically 30 days for month-to-month tenancies. There is no cap on rent increases, no required justification, and no local board or agency to appeal to. The state preemption applies uniformly across Illinois, including Lake County and all of its municipalities.
If you receive a rent increase notice that you cannot afford, your primary options are to negotiate with your landlord, exercise your right to vacate with proper notice, or seek rental assistance through local and state programs. Being aware of this preemption helps set realistic expectations about what tenant protections are available in Deerfield.
Although Deerfield has no local tenant ordinances, Illinois state law provides a meaningful framework of protections for all renters in the village.
Security Deposit Rules (765 ILCS 710 & 765 ILCS 711): Illinois landlords who hold security deposits for residential units containing 5 or more units must comply with the Security Deposit Return Act. Deposits must be returned — with an itemized written statement of any deductions — within 30 days after the tenant vacates. Interest on deposits held longer than 6 months may be required depending on the size of the building. Wrongful withholding entitles tenants to recover twice the amount wrongfully withheld (765 ILCS 710/1).
Habitability (Illinois Common Law & 765 ILCS 735/1): Illinois recognizes an implied warranty of habitability in residential leases. Landlords must maintain rental units in a condition fit for human habitation, including functioning heat, plumbing, and structural safety. Tenants who give proper written notice and whose landlord fails to remediate within a reasonable time may have remedies including rent withholding or repair-and-deduct, though these should be pursued with legal guidance.
Notice to Terminate (735 ILCS 5/9-207): For month-to-month tenancies, Illinois law requires at least 30 days written notice from either party prior to termination. For week-to-week tenancies, 7 days notice is required. Fixed-term leases terminate at the end of the lease period unless renewed.
Anti-Retaliation (765 ILCS 720/1): Illinois law prohibits landlords from retaliating against tenants for reporting code violations to a governmental authority, complaining to the landlord about habitability issues, or organizing with other tenants. Retaliatory acts include rent increases, lease termination, and reduction of services. A tenant who suffers retaliation may have a legal claim for damages.
Lockout and Utility Shutoff Prohibition (720 ILCS 5/21-3): Self-help eviction — including changing locks, removing doors or windows, or deliberately shutting off utilities to force a tenant out — is illegal in Illinois. A landlord who engages in such conduct may face criminal liability under the Illinois Criminal Code as well as civil damages.
Security Deposit Cap: Illinois state law does not set a maximum limit on the amount a landlord may charge as a security deposit. Landlords in Deerfield may therefore require any deposit amount, though it must be reasonable and clearly stated in the lease.
Return Deadline: Under the Illinois Security Deposit Return Act (765 ILCS 710/1), landlords of residential rental buildings with 5 or more units must return the security deposit — or the balance after lawful deductions — within 30 days after the tenant vacates the unit and returns possession to the landlord. The landlord must include an itemized written statement of any deductions for damages beyond normal wear and tear.
Interest on Deposits (765 ILCS 711/1): For buildings with 25 or more units, landlords are required to pay interest on security deposits held for more than 6 months. The interest rate is set annually by the Illinois Office of Banks and Real Estate. Failure to pay required interest can give the tenant a right to apply the interest toward rent.
Penalty for Wrongful Withholding: If a landlord subject to the Act willfully fails to return a deposit or provide the required itemized statement within the 30-day window, the tenant is entitled to recover twice the amount of the security deposit wrongfully withheld, plus court costs and reasonable attorney fees (765 ILCS 710/1).
Practical Tip: Document the condition of your unit thoroughly — with dated photographs and a written move-in checklist — to protect your right to a full deposit return. Send any dispute in writing and retain copies of all correspondence with your landlord.
Evictions in Deerfield follow Illinois state procedure under the Forcible Entry and Detainer Act (735 ILCS 5/9-101 et seq.). Landlords must follow a strict legal process; there is no shortcut available to remove a tenant without a court order.
Step 1 — Written Notice: Before filing in court, the landlord must serve the tenant with a written notice appropriate to the reason for eviction. For non-payment of rent, a 5-day notice to pay or quit is required (735 ILCS 5/9-209). For lease violations other than non-payment, a 10-day notice to cure or quit is required. For month-to-month tenancies with no cause alleged, a 30-day notice to terminate is required (735 ILCS 5/9-207).
Step 2 — Filing in Court: If the tenant does not comply with the notice, the landlord may file an eviction complaint in the Lake County Circuit Court. The tenant will be served with a summons and given a date to appear. Tenants have the right to respond and contest the eviction.
Step 3 — Hearing and Judgment: Both parties present their case at a hearing. If the court enters a judgment for possession in favor of the landlord, the tenant typically has a short period — often set by the judge — to vacate voluntarily.
Step 4 — Enforcement (Writ of Possession): If the tenant does not vacate after a judgment is entered, the landlord may request a Writ of Possession from the court. Only a Lake County Sheriff's Deputy may physically remove the tenant; the landlord has no right to do so personally.
Self-Help Eviction is Illegal: Changing locks, removing the tenant's belongings, shutting off utilities, or otherwise attempting to force a tenant out without a court order violates Illinois law (720 ILCS 5/21-3) and may expose the landlord to criminal and civil liability. If your landlord attempts a self-help eviction, contact legal aid or law enforcement immediately.
This article is provided for general informational purposes only and does not constitute legal advice. The information on this page reflects laws and regulations as of April 2026, but tenant rights laws can change through legislation, court decisions, or local ordinance updates. RentCheckMe makes no warranty regarding the accuracy, completeness, or applicability of this information to your specific situation. If you have a legal dispute with your landlord or need guidance on your rights, please consult a licensed Illinois attorney or contact a qualified legal aid organization serving Lake County. Do not rely solely on this page to make legal decisions.
Find out if your home is covered by rent control or tenant protections.
Use the Address Checker →We'll email you if the rent cap, coverage rules, or tenant protections change — no spam, unsubscribe any time.