Ill. Admin. Code tit. 47 § 380.310
An LAA or a Developer may include in its Application a pledge to use its best efforts to make Units under its Allocation available to Special Needs Households. Notwithstanding the fact that an LAA or a Developer has included such a pledge in its Application, LAAs must require Landlords to rent, and Developers must rent, available Units to the first eligible Tenant, regardless of whether the prospective Tenant is a Special Needs Household. An LAA, a Landlord or a Developer shall not require a Tenant to have a diagnosis of a particular illness or the presence of a specific disability as a condition of eligibility for a Unit unless that diagnosis or disability is required by another funding source for the Unit or the Project.
Ill. Admin. Code tit. 47, § 380.310