William D. Heinz has broad experience in complex commercial litigation and is a Fellow of the prestigious American College of Trial Lawyers.  Mr. Heinz has represented corporations and individuals in civil and criminal trials, appellate court proceedings and arbitrations in a wide variety of matters ranging from ERISA and fiduciary responsibilities to antitrust, securities, and intellectual property.  He also has substantial corporate counseling experience.

Mr. Heinz has been recognized by Legal 500 and the Leading Lawyers Network and was named one of the top 100 attorneys in the State of Illinois by Illinois Super Lawyers.   He is AV Peer Review Rated, Martindale-Hubbell's highest peer recognition for ethical standards and legal ability.

Mr. Heinz serves on the boards of Midland National Life Insurance Company and North American Company for Life and Health Insurance, insurance subsidiaries of the Sammons Financial Group.  He previously served on the Board of Directors of Partners Financial Group, a bank holding company, for approximately 10 years, i.e. from the time of its founding through its subsequent acquisition.  He currently serves as the US counsel for a European packaging manufacturer and counsel to the board of trustees of a Big Ten university.  He has also served as counsel on Sarbanes Oxley issues to the Audit Committees of substantial publicly traded companies.

Mr. Heinz is the past State Chair for Upstate Illinois for the American College of Trial Lawyers.   Over several decades, he has served the Illinois State Bar Association, the Chicago Bar Association and the Association of Professional Responsibility in a variety of committee leadership roles.   Mr. Heinz is a member of the President's Council of the University of Illinois and serves on the Dean’s Advisory Council at the University of Illinois College of Law, where he has been named a Distinguished Graduate. 

Previously, he served the community as a member of the boards for the Legal Aid Bureau of Chicago and Metropolitan Family Services.  He also has taught professional responsibility law as an adjunct professor at Northwestern University School of Law.

Mr. Heinz was the initial internal general counsel for the firm of Jenner & Block and served in that capacity for more than 10 years while maintaining his private practice.