William J. "Bill" Mitchell

Jon Ballis is Chairman of the Executive Committee of Kirkland & Ellis, one of the world’s leading law firms with 6,500 professionals (including more than 3,000 attorneys) around the world committed to the highest quality legal advice and unparalleled client service. In his role, Jon is responsible for establishing and executing upon Kirkland’s strategic priorities, including advancing business initiatives and promoting a culture of performance, collaboration and collegiality. ...

Nerissa Coyle McGinn is a lawyer recognized by Best Lawyers in the practice area of Advertising Law. Nerissa Coyle practices law in Chicago, Illinois Best Lawyers has recognized Nerissa Coyle McGinn since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Nerissa Coyle McGinn is held by other lawyers.

Carolyn M. Passen is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Intellectual Property and Trademark Law. Carolyn M. practices law in Chicago, Illinois Best Lawyers has recognized Carolyn M. Passen since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Carolyn M. Passen is held by other lawyers.

Ranked by Chambers USA for both taxation and tax controversy, The Legal 500 , and Best Lawyers in America , David Blum provides transactional, tax planning, and tax litigation counsel to local and multinational businesses throughout the United States. His practice serves a variety of sectors, including telecommunications, automotive retail, equipment leasing, financial services, senior care, logistics, hospitality, and retail, among others. According to a client quoted in Chambers , “Da...

William J. Serritella, Jr. is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. William J. practices law in Chicago, Illinois Best Lawyers has recognized William J. Serritella, Jr. since 2012. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which William J. Serritella, Jr. is held by other lawyers.

As a partner in the Intellectual Property practice group, Jeff focuses his work on patent litigation and strategic counseling related to pharmaceutical, chemical, biotechnology, electrical engineering, agricultural and food products. A registered patent attorney with four decades of experience, Jeff has successfully represented both patent owners and patent challengers through all stages of federal litigation and appeals. A significant portion of Jeff’s practice includes advising pharma...

Angela is chair of the firm’s Insurance Policyholder practice group, a member of the firm’s Executive Committee, and Past President of the American College of Coverage Counsel. She counsels corporate policyholders on complex risk management and insurance issues and develops custom strategies to maximize recovery when claims arise. With over 30 years of experience, Angela has been instrumental in recovering hundreds of millions of dollars of insurance for her clients through negoti...

Andrew is a partner in the firm’s Litigation and Insurance Policyholder Practice Groups — a trusted advocate for clients navigating high-stakes commercial disputes and insurance coverage matters across multiple industries, from inception through trial and appeal. Andrew has an active commercial litigation practice that spans breach of contract claims, business torts, fraud, class action defense, partnership and shareholder disputes, defamation, False Claims Act cases, Illinois Bio...

Over the past 25 years, Brian Heidelberger has represented a multitude of the nation’s most revered brands and agencies in the marketing of their products and services. Recognized as Chicago “Lawyer of the Year” in Advertising Law by Best Lawyers and cited by Chambers USA as a “practical solutions-oriented lawyer” and an “expert in the field of advertising,” Brian is sought after by clients for his cutting-edge legal and industry knowledge, responsive...

E. Lynn Grayson is a partner in the environmental law firm of Nijman Franzetti LLP in Chicago. She is consistently recognized as a leading environmental lawyer by Chambers USA , The Best Lawyers in America , Who’s Who: Environment , Illinois Super Lawyers, and the Leading Lawyers Network . She is AV Peer Review Rated, Martindale-Hubbell’s highest peer recognition for ethical standards and legal ability. Ms. Grayson formerly was a partner and chair of the environmental practice gro...