Planning disclosure delivery before a contract is signed
Learn the essential requirements for delivering mandatory Illinois property disclosures to prospective buyers to ensure a compliant and transparent sale…
The short answer
Under the Illinois Residential Real Property Disclosure Act, sellers must provide a written disclosure report to prospective buyers before a sales contract is executed. This document covers property condition and, when applicable, known hazards like radon or lead. Effective delivery occurs upon receipt by the buyer via methods such as email, physical mail, or electronic platforms, ensuring clear, documented communication before legal commitment.
Understanding Statutory Disclosure Requirements
The Illinois Residential Real Property Disclosure Act applies to residential real property with one to four dwelling units, condos, and certain manufactured homes. Sellers are obligated to disclose material defects of which they have actual knowledge. A material defect is a condition that significantly impairs health or safety or substantially affects the property value.
Decision Worksheet: List your property type (e.g., single-family, condo) and verify if any legal exemptions apply, such as court-ordered transfers or never-occupied new construction. Consult with a professional to confirm your specific status under the Act.
Managing Required Hazardous Material Disclosures
Beyond general property conditions, Illinois law requires specific disclosures regarding radon and lead-based paint. Sellers must provide the IEMA-OHS radon pamphlet and disclosure form. For pre-1978 properties, federal rules mandate the provision of lead-based paint records and a warning statement to buyers.
Hypothetical Planning Example: A seller of a 1960 home identifies a potential radon mitigation need. They prepare both the state-mandated radon form and the federal lead disclosure package to present to the buyer simultaneously with the general property disclosure.
Facilitating Compliant Disclosure Delivery
Delivery can be achieved through various channels, including personal delivery, facsimile, email, or other electronic methods. Delivery to one buyer or their authorized representative constitutes delivery to all. Sellers should obtain confirmation of receipt to maintain a clear record, as these disclosures serve as a foundational part of the transaction.
Decision Worksheet: Select a preferred delivery method (e.g., secure digital signature platform) and identify the specific recipient contact information for all buyers to ensure full compliance upon transmission.
Addressing Professional and Agency Information
Sellers are not required to conduct independent investigations to complete disclosure forms. If a seller relies on information provided by licensed professionals or public agencies, they are generally not liable for inaccuracies resulting from that information. Focus on providing honest, known details rather than conducting unauthorized inspections.
Decision Worksheet: If you are unsure about a specific system's condition, identify which licensed professional or public agency you can consult. Ask: 'Can I document the professional assessment to include as supporting evidence for my disclosure?'
Checklist
- Verify property eligibility under the Disclosure Act
- Prepare the Residential Real Property Disclosure Report
- Attach required radon informational pamphlets
- Include lead-based paint disclosures for pre-1978 homes
- Confirm receipt of all documents by the buyer before signing
Common questions
What if I do not have specific knowledge of a defect?
You are only required to disclose material defects of which you have actual knowledge. If you are uncertain about a condition, ask a professional inspector to evaluate the property rather than guessing.
Does my disclosure serve as a warranty for the buyer?
No. The disclosure report is not a warranty. It is a report of your current, actual knowledge regarding the property's condition.
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.