Michael P. Gillespie

Mark Filip, a former federal judge and high-ranking Justice Department official, helps to lead Kirkland’s government enforcement defense and internal investigations group, and serves as a member of the Firm’s Executive Committee. As a partner in the Firm’s Chicago and Washington, D.C. offices, Mark has successfully guided numerous Fortune 100 companies and financial institutions through complex mission-critical moments, counseling leaders and Boards of Directors on high-stak...

Jason is a litigator and strategic counselor in all aspects of labor and employment law. He litigates unfair labor practices before the NLRB, arbitrates labor grievances, negotiates and administers collective bargaining agreements, and develops long-term labor strategies to maximize the value and effectiveness of each client’s workforce. He also litigates and provides daily counsel on matters arising out of the numerous federal and state counterpart statutes governing employers, includi...

Kenneth T. Lumb joined Corboy & Demetrio as a Chicago personal injury and medical malpractice lawyer in 1995 after a tour of duty in the United States Army. Ken was named Partner in 2015 and Managing Partner in 2019. As a captain in the Army's Judge Advocate General's Corps (JAG Corps), Mr. Lumb served four years as the Medical Claims Judge Advocate at Walter Reed Army Medical Center in Washington, D.C. His duties at the Defense Department's largest medical facility included medical malpr...

Lisa M. Burman is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Lisa M., who practices law in Chicago, Illinois, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa M. is held by other top lawyers in the same geographic and legal practice area.

Seth is a partner in the firm’s Corporate & Securities practice group. Seth focuses his practice on representing large and middle market private equity and venture funds and privately and publicly owned companies in a wide variety of domestic and cross-border complex business transactions. These include mergers & acquisitions, divestitures, leveraged buyouts, venture capital investments, carve-out transactions, joint ventures, start-up financing, growth capital investments and c...

Born and raised in the Chicagoland area, John grew up working in his family’s restaurant and then stayed local attending both Northwestern University (B.A.) and Notre Dame Law School (J.D.). As a first generation Greek American, John witnessed the difficulties that immigrants can experience while adapting to a new culture. He also experienced the importance of community in helping people to assimilate and understand how to become part of that new culture. He is fluent in Greek and has b...

A firm founder, visionary leader, and skilled litigator, Paul Slater handles high-stakes antitrust cases for private and public enterprises, including Fortune 500 companies. He pioneered the opt-out practice, representing companies as individual plaintiffs in industry-wide multidistrict antitrust litigation. This practice enables clients to tailor their claims and maximize their recoveries outside of class action proceedings, which often fail to meet individual client needs. Mr. Slater repres...

Annemarie Tarara is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law Mediation. Annemarie, who practices law in Lake Forest, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Annemarie is held by other top lawyers in the same geographic and legal practice area.

Doug Sawyer is a partner in the Intellectual Property practice of Paul Hastings and is based in the firm's Chicago office. Mr. Sawyer’s practice focuses on intellectual property litigation and enforcement. He has extensive litigation experience, including complex civil litigation, patent and trademark infringement, trade secret misappropriation, false advertising, deceptive trade practices, antitrust, and breach of contract. Mr. Sawyer has counseled clients on all aspects of intellectua...

Drawing on nearly 40 years of combined experience as a federal prosecutor and defense attorney, Sheldon Zenner expertly navigates his clients through high-stakes matters, including government and internal investigations, regulatory proceedings, all phases of criminal matters and related civil litigation. Sheldon's diverse client base is made up of corporations, high-ranking executives and company owners across a wide range of industries, including financial services, health care and entertain...