In Illinois, federal and state laws protect families with children from discrimination in housing. These laws apply to condo owners who rent their units as well as landlords in rental buildings.
Condo owners who are landlords should be aware of their renters' rights with respect to families with children. Condo board members must also be aware of the protections granted to families who rent in their buildings to ensure that they are not taking any action that could be discriminatory or for which tenants could file a complaint. If tenants are experiencing situations with neighbors that could be construed as discriminatory, the board may become responsible for responding to a complaint.
You can read about the protections granted to families with children under the Fair Housing Act on the IL Department of Human Rights Website.
Landlords should also be aware of the city of Chicago's occupancy restrictions to ensure that they are not violating existing limits on the number of tenants that can reside in a unit.