" See also Applegate v. Inland Real Estate Corp., 109 Ill.App.3d 986, 989 (1982) (tenant moved in on October 29 and moved out October 31 because of roaches, filth, and disrepair). ΒΆ 21 Under the consumer protection principles that the Jack Spring court held applicable to leases, "the warranty of merchantability, [and] fitness for the particular purpose of the buyer *** are the criteria for determining whether warranties have been satisfied.