The defendant may file a counterclaim as in other civil actions or other defense which would have been proper if the action had been for the rent, and with like effect.
735 ILCS 5/9-306
Counterclaim - Defenses
P.A. 82-280.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.