Illinois Statutes Chapter 765. Property § 721/5. Prohibition on retaliatory conduct by landlord

(1) complained of code violations applicable to the premises to the relevant governmental agency, elected representative, or public official charged with responsibility for enforcement of a building, housing, health, or similar code;

(2) complained of a building, housing, health, or similar code violation or an illegal landlord practice to a community organization;

(3) sought the assistance of a community organization to remedy a code violation or illegal landlord practice;

(4) complained or requested the landlord to make repairs to the premises as required by a building code, health ordinance, other regulation, or the residential rental agreement;

(5) organized or become a member of a tenants' union or similar organization;

(6) testified in any court or administrative proceeding concerning the condition of the premises; or

(7) exercised any right or remedy provided by law.