Daniel T. Madigan

John E. DeLascio is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. John E., who practices law in Chicago, Illinois, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John E. is held by other top lawyers in the same geographic and legal practice area.

As Global Head of McDermott’s Trademark Prosecution and Controversy Practice, Christina (Tina) L. Martini focuses her practice on domestic and international trademark and copyright law, as well as domain name, Internet, social media, advertising, unfair competition and entertainment law. Tina has extensive experience in counseling, prosecution, enforcement, due diligence and licensing matters. She successfully assists clients in protecting their intellectual property rights through liti...

Kevin represents his clients in all aspects of patent law, including due diligence investigations for mergers and acquisitions, patent counseling and prosecution, strategic management of patent portfolios, and opinion preparation, focusing his practice primarily on the biotechnological, pharmaceutical, and medical device industries. Kevin’s work encompasses a broad spectrum of technologies, including therapeutics such as cellular therapies, gene therapies, vaccines, large molecules (bio...

Timothy J. Ritchey is a partner at Peck Ritchey, LLC who concentrates his practice in estate and trust litigation , elder law , and guardianship . Tim has been appointed Special Assistant Attorney General in numerous matters to represent the State’s interests in actions relating to Illinois healthcare and disability law. In 2014, Tim wrote legislation and testified as an expert before the Illinois Senate on an amendment to the Illinois Probate Act regarding elder abuse and financial exp...

Melissa A. Siebert is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants. Melissa A., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa A. is held by other top lawyers in the same geographic and legal practice area.

Jeremy D. Margolis is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Jeremy D., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeremy D. is held by other top lawyers in the same geographic and legal practice area.

Howard P. Zweig is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Howard P., who practices law in Chicago, Illinois, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Howard P. is held by other top lawyers in the same geographic and legal practice area.

Keith Hebeisen is a partner at Clifford Law Offices. One of the most respected medical malpractice attorneys in Illinois, Mr. Hebeisen has achieved great results for clients in settlements and trials. Although Mr. Hebeisen concentrates his practice in the area of medical malpractice cases against doctors and hospitals, he has represented individuals in a wide variety of cases, including transportation, product liability and toxic torts. We are proud to have him on our team. Mr. Hebeisen has b...

Ted Becker is Co-Chair of McDermott’s ERISA Litigation Team and a Fellow of the American College of Employee Benefits Counsel. He focuses his practice on litigation under ERISA and related federal and state actions, and defense of government investigations and audits relating to employee benefit, health and welfare, and retirement plans brought by the US Department of Labor, the Internal Revenue Service, and the US Department of Justice. He is a leading voice and nationally recognized p...

Jeffrey H. Lipe is a founding partner of Lipe Lyons Murphy Nahrstadt & Pontikis LTD in Chicago, Illinois. He leads the firm’s general liability practice and is a member of the professional liability, commercial litigation, product liability, construction, transportation, and labor and employment practice groups. His practice includes product liability, construction litigation, commercial litigation, employment counseling and litigation, premises liability, transportation liability m...