GRAYSLAKE OFFICE 18931 W. Washington St. Suite 100 Third Lake, IL. 60030 847.692.9234 847-548-4860 [Fax] Hours of Operation Monday to Thursday 9:00AM to 5:00PM Friday 8:30AM to 1:00PMStarting May 2016: Saturday 8:30AM to 12:00PM. Early/Late Hours: Thursday 7am -7pm. Map: DEER PARK 21660 West Field Parkway Third Floor Deer Park, IL 60010 847-692 ....