Township Assessor John R. Lawson, along with State Senator Laura Murphy, State Representative Michelle Mussman, Cook County Commissioner Kevin B. Morrison, Village of Hoffman Estates Mayor Bill McLeod, Village of Hanover Park Mayor Rodney Craig and Elk Grove Village Mayor Craig B. Johnson will be hosting a free educational property tax appeals seminar from 6-8 p.m. on Monday, Aug. 22, at the Schaumburg High School Gymnasium, Door 10, 1100 W. Schaumburg Road Schaumburg.