Callie Carnemark

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

Michelle L. Butler provides counsel on government pricing, health care, and FDA law in the area of prescription drugs and biologics. Across these practice areas, she specializes in the interpretation of complex regulations. Ms. Butler advises clients on changes in health care law and how these changes affect calculation and reporting across government pricing programs, specifically the Medicaid Drug Rebate Program, the 340B Program, the Medicare Part B Average Sales Price calculation, and the...

Courtney M. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Courtney M., 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 Courtney M. 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 ...

William Walsh is a top attorney recognized by Best Lawyers in the practice area(s) of Closely Held Companies and Family Businesses Law. William, who practices law in Fairfax, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice area.

Elizabeth Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Elizabeth, 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 Elizabeth is held by other top lawyers in the same geographic and legal practice area.

Patrick L. O'Neil is a top attorney recognized by Best Lawyers in the practice area(s) of Eminent Domain and Condemnation Law and Land Use and Zoning Law. Patrick L., who practices law in Bethesda, Maryland, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick L. is held by other top lawyers in the same geographic and legal practice area.

Ms. Knapp is a partner at Shounbach having joined the firm in 2013. Her legal career has been dedicated entirely to the practice of family law since completing a two year judicial clerkship with the Honorable William D. Hamblen (Ret.) in Prince William County Circuit Court. Ms. Knapp graduated from George Mason University School of Law 2011, however, law is a second career for Ms. Knapp. Prior to law school, she worked in public and media relations for six years, gaining oral and written advo...

Marc S. Martin is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law. Marc S., who practices law in Washington, District of Columbia, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc S. is held by other top lawyers in the same geographic and legal practice area.

Mitch Rapaport is a partner in the firm focusing in tax issues related to public finance and infrastructure finance transactions. During his 30 years in practice, Mr. Rapaport has participated in a wide variety of tax-exempt financings, with an emphasis on public-private partnership transactions and other project financings. Mr. Rapaport has worked on numerous public power financings; stadium and convention center transactions; and education, infrastructure and other industrial projects. What...