Frank H. Henneburg

Raymond (Ray) A. Jacobsen, Jr., advises clients on mergers, acquisitions and complex antitrust litigation. He has significant experience in the defense, medical devices, biotech, consumer product, energy and health care industries. Ray is the global head of McDermott’s Antitrust Practice and serves on the Management Committee. Read full biography: https://www.mwe.com/people/jacobsen-raymond-a/

Employers and business owners trust and rely on Joy Einstein’s legal counsel when it comes to their employment policies, practices and preventative measures designed to avoid costly litigation. Employers with unionized workforces rely on Joy’s legal counsel to handle unionization campaigns, unfair labor practice charges, CBA negotiations, strikes and grievance and arbitration procedures. Clients and peers benefit from Joy’s ability to design and clearly convey legal solution...

Margaret Marks is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Trusts and Estates. Margaret, who practices law in Arlington, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margaret is held by other top lawyers in the same geographic and legal practice area.

Ashley Haun is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Ashley, who practices law in Bethesda, Maryland, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ashley is held by other top lawyers in the same geographic and legal practice area.

Clients turn to David Kochanski when they require practical and cutting edge approaches to efficiently and economically achieve their business objectives. Clients hire him for their complex real estate transactions because he is not only a recognized leader within the field, but also because he is not afraid to make unconventional suggestions that he can back up with solid legal and business rationale. David’s clients trust his judgment and have confidence in his advice. David’s a...

Suzan Onel is a top attorney recognized by Best Lawyers in the practice area(s) of FDA Law. Suzan, who practices law in Washington, District of Columbia, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Suzan is held by other top lawyers in the same geographic and legal practice area.

Kevin P. O’Brien is a partner in the firm’s Employee Benefits and Executive Compensation practice. His practice has concentrated in employee compensation and benefits for over 30 years. Kevin is widely known as a leader in a wide variety of subjects, including innovative defined benefit plan design, flexible benefits, ERISA fiduciary matters and executive compensation. Before joining the firm, Kevin worked in the Pension and Welfare Benefits Administration at the Labor Department ...

Kirk J. Nahra is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law and Privacy and Data Security Law. Kirk J., who practices law in Washington, District of Columbia, has been recognized since 2008. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kirk J. is held by other top lawyers in the same geographic and legal practice area.

Lawrence M. Prosen is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration, Construction Law and Litigation - Construction. Lawrence M., who practices law in Washington, District of Columbia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lawrence M. is held by other top lawyers in the same geographic and legal practice area.

Christopher S. Rizek is a Member in Caplin & Drysdale's Washington, D.C., office. He also serves as General Counsel to the firm. In 2014, he was listed in the elite "Leading Lawyer" list for Tax Controversy by The Legal 500 . Services Mr. Rizek represents taxpayers in all types of federal civil and criminal tax controversy matters. He also guides clients through IRS audits, prepares administrative claims and protests of IRS actions, and litigates tax and tax-related cases in U.S. district...