(765 ILCS 730/3)
(from Ch. 80, par. 43)
When a rent concession shall be made in the case of any lease
hereafter entered into, it shall be the duty of the lessor, at the time or
immediately after the lease is made, to cause such lease to bear a legend
across the face and text thereof plainly legible and in letters not less
than one-half inch in height consisting of the words "Concession Granted,"
and to bear a memorandum on the margin or across the face of such lease
stating the amount or extent and nature of each such concession, and any
failure on the part of a lessor so to do shall be unlawful and a violation
of this Act.
(Source: Laws 1925, p. 457.)