Checking whether the Illinois residential disclosure law covers a transfer
Determine if your Illinois property transaction falls under mandatory disclosure requirements with this guide on scope, property types, and legal obligations.
The short answer
The Illinois Residential Real Property Disclosure Act mandates that sellers of 1-to-4 unit residential properties, including condominiums and certain manufactured homes, provide a written disclosure report to buyers before contract signing. This obligation applies to most sales, exchanges, and installment contracts. Certain exemptions exist, such as court-ordered transfers or never-occupied new construction, which should be verified with legal counsel.
Identifying Covered Property Types
The law applies specifically to real property improved with one to four dwelling units. This scope encompasses single-family homes, condominiums, and cooperatives. Additionally, manufactured homes classified as real property fall under these requirements.
Worksheet: List your property type (e.g., single-family, condo, or mobile home). If your property contains more than four units, the Residential Real Property Disclosure Act may not apply to your transaction.
Recognizing Mandatory Transfer Methods
Disclosure is required for various transfer types, including standard sales, exchanges, installment land contracts, and ground leases. Even leases with purchase options trigger these requirements.
Worksheet: Check your contract type. Is it a sale, an exchange, or a lease-option? If it is a standard purchase, the seller must deliver the disclosure report before the contract is finalized.
Understanding Potential Statutory Exemptions
Certain transfers are exempt from the disclosure mandate, such as court-ordered transfers or sales involving never-occupied new construction. These exceptions are specific and often nuanced.
Worksheet: Consult with an attorney to confirm if your transaction qualifies as an exemption, such as a transfer between co-owners or a deed in lieu of foreclosure.
Confirming Delivery and Documentation
Sellers must provide the report before the contract is signed. Delivery can occur via personal methods, email, or certified delivery services. Receiving the report by one buyer satisfies the requirement for all.
Worksheet: Document the date and method of delivery. Ensure the recipient acknowledges the receipt, as this confirms the seller has fulfilled this initial legal obligation.
Checklist
- Confirm if the property contains 1-4 units.
- Verify the transfer type is covered by the Act.
- Check if any statutory exemptions apply to your situation.
- Ensure the disclosure form is delivered before the contract is signed.
- Keep a record of the delivery method and receipt date.
Common questions
Does the disclosure law apply to commercial properties?
No, the Act specifically governs residential real property improved with one to four dwelling units, condominiums, or cooperatives.
What happens if a seller fails to provide the required disclosure report?
If a seller fails to provide the report, the buyer gains the right to terminate the real estate contract.
Sources
- Illinois Residential Real Property Disclosure ActChecked October 12, 2026
- Illinois Condominium Property Act — 2025 editionChecked October 12, 2026
- IEMA-OHS — Real estate radon guidanceChecked October 12, 2026
- EPA — Real estate lead-hazard disclosuresChecked October 12, 2026
This guide is general educational content from SQFT IO, prepared with AI assistance. It is not legal, tax or loan advice. Talk with a licensed attorney, tax professional or lender about your situation. SQFT IO Illinois license 478.027617.