Commercial National Bank of Chicago v. City of Chicago

The Chicago service-tax ordinance was adopted on July 20, 1981. (Municipal Code of Chicago §200.5 — 1, et seq. (1981).) These consolidated appeals involve several challenges to the constitutionality of the ordinance. Separate suits were originally filed in the circuit court of Cook County by (1) the Commercial National Bank of Chicago and various business entities; (2) the Illinois State Bar Association, representing attorneys throughout the State of Illinois; and (3) the Chicago Bar Association, its officials and certain members, and various other professional societies and members.…