Mark A. Lorenzo’s Real Estate listings in the Chicago and Western Suburbs of Illinois. Proudly serving Cook, DuPage, Kane, Will, and McHenry Counties. CISS (Certified Integrity Selling Specialist), Buyers Specialist, Investor Specialist, Foreclosure Certified Specialist, and Short Sale Certified Specialist. Up to the minute property details, locations, maps, open houses, other local listings, and contact information.