William Hannay

Schiff Hardin LLP

William M. Hannay represents corporations and individuals in civil and criminal matters involving federal and state antitrust law, the Foreign Corrupt Practices Act (FCPA), foreign direct investments (including Exon-Florio/CFIUS), antiboycott laws, export control regulations, Telephone Consumer Protection Act, and other unfair trade practices laws. He regularly assists foreign and domestic clients on the antitrust and Hart-Scott-Rodino Act aspects of mergers and acquisitions.

Bill has represented clients in many industries, particularly insurers and insurance support organizations in class actions brought against the insurance industry as well as natural gas and electric utilities in the public utility industry.

Earlier in his career, Bill served with commendation in the United States Army during the Vietnam War (1967-1968). He has served as Chair of the American Bar Association’s 14,000-member Section of International Law and currently serves on the Board of Directors of the ABA’s Rule of Law Initiative (ROLI).

Bill is a former Assistant District Attorney in the New York District Attorney’s Office. On behalf of Schiff Hardin clients, he has conducted non-public internal investigations and represented clients in external investigations by U.S. and foreign enforcement agencies.

For many years, Bill has been an Adjunct Professor at IIT/Chicago-Kent College of Law, teaching courses in Antitrust Law and International Business Transactions.


  • Georgetown University Law Center, J.D., 1973
  • Yale University, B.A., 1966


  • Illinois
  • New York
  • U.S. District Court for the Northern District of Illinois (Trial Bar)


  • American Law Institute
  • Uniform Law Commission, Joint Editorial Board for International Law, Co-Chair
  • Union Internationale des Avocats (UIA), Rule of Law program, Director


Rate : $$$

What types of cases Attorney William Hannay & Schiff Hardin LLP can handle?
Schiff Hardin LLP can handle cases related to laws concerning Litigation, Consumer Rights & Protection, Antitrust & Trade, International Law. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Schiff Hardin LLP located?
Schiff Hardin LLP is located at 233 S Wacker Dr #7100, Chicago, IL 60606, USA. You can reach out to Schiff Hardin LLP using their phone line 312.258.5617. You can also check their website schiffhardin.com or email them at [email protected].
How much would it cost to hire Schiff Hardin LLP?
William Hannay lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Schiff Hardin LLP
233 S Wacker Dr #7100, Chicago, IL 60606, USA
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