A group of Cook County property owners have filed suit in Illinois federal court alleging that they are owed more than $27 million in property tax refunds due to discriminatory assessments by the County’s Treasurer and Assessor. These property owners claim they paid taxes at significantly higher levels than other taxpayers in the same class. The complaint alleges from 2000 through 2008, assessed valuations of single-family residential, commercial and industrial properties were not made by the assessor at percentages of market value required under the state Property Tax Code and the Illinois Constitution. As a result, the complaint says, the group collectively overpaid property taxes by more than $27.8 million on six properties.

The property owners also accuse the county assessor of destroying approximately 90 percent of electronic records of his assessments of single-family residential properties and records of his internal appeals process for all classes of property for tax years 2000 to 2006 and part of 2007. The owners allege the destruction of those records violated the law on preservation of public records.

The case is A.F. Moore & Associates Inc. et al. v. Pappas et al., case number 1:18-cv-04888, in the United States District Court for the Northern District Of Illinois.