Jonathan D. "Jon" Hacker

Julia K. York is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law. Julia K., who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julia K. is held by other top lawyers in the same geographic and legal practice area.

Through his years of experience representing companies of all sizes at a large international law firm, TJ Wilkinson developed a keen business acumen that helps him view transactions holistically, allowing him to guide clients’ day-to-day decisions from a broad perspective and promote the overall financial health of their enterprise. Working with clients across industries, ranging from startups to mature businesses, TJ applies his depth of knowledge in taxation and his comprehensive busi...

Ann Luu is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Ann, who practices law in Fairfax, Virginia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ann is held by other top lawyers in the same geographic and legal practice area.

Jessica A. Hough is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation and Controversy - Tax. Jessica A., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jessica A. is held by other top lawyers in the same geographic and legal practice area.

Frederick (Rick) Stearns provides his clients with experience on a wide range of issues affecting makers of prescription and over-the-counter (OTC) drugs, medical devices, dietary supplements, cosmetics, food, and food ingredients. He is also deeply involved with the regulatory issues surrounding cannabis and hemp-based products, including cannabidiol (CBD) and related cannabinoids. Rick helps manufacturers evaluate the need for marketing approval from the U.S. Food and Drug Administration (F...

Marc Fiedler is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Marc, who practices law in Washington, District of Columbia, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc is held by other top lawyers in the same geographic and legal practice area.

S. Libby Henninger is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. S. Libby, who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which S. Libby is held by other top lawyers in the same geographic and legal practice area.

Lewis M. Csedrik is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Lewis M., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lewis M. is held by other top lawyers in the same geographic and legal practice area.

Michael W. Brooks is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Oil and Gas Law. Michael W., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael W. is held by other top lawyers in the same geographic and legal practice area.

Barry Boss is co-chair of Cozen O’Connor’s Criminal Defense & Internal Investigations practice group, vice chair of the Commercial Litigation Department and office managing partner of the D.C. office. Prior to joining Cozen O’Connor in April 2004, Barry was an assistant federal public defender in Washington, D.C. Barry focuses his practice on complex criminal matters, particularly involving allegations of white-collar crime in federal court. Barry has extensive jury tria...