Winning complex trials to be subject of CLE at Jeffery Leving law firm. The Law Offices of Jeffery M. Leving Ltd. will host the next presentation of the Arthur S. Kallow Continuing Legal Education (CLE) Seminar Series on Thursday, Aug. 18 at 6:30 p.m. CDT at 19 S. LaSalle St. in Chicago, and via Zoom.