The Patterson Law Firm handles business lawsuits, emergency business litigation, and legal malpractice actions in Chicago, Illinois and in the counties of Cook, Lake, DuPage, Kane, McHenry, Will, Champaign, Kankakee, Madison, McLean, Peoria, Winnebago, Sangamon, St. Clair, as well as Wisconsin, including Milwaukee, Waukesha, Racine, Kenosha, Walworth, and Ozaukee counties. Located in Chicago, Illinois, the Patterson Law Firm handles cases for clients in cities throughout Illinois, including Chicago, Wheaton, Naperville, Oak Brook, Aurora, Waukegan, Joliet, Geneva, Rockford, Champaign, Springfield, Bloomington, Decatur, Peoria, Kankakee, and Moline.