Ronald A. Karp

Smith R. Brittingham IV is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Smith R., 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 Smith R. is held by other top lawyers in the same geographic and legal practice area.

Alva C. Mather is a top attorney recognized by Best Lawyers in the practice area(s) of Food and Beverage Law. Alva C., who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alva C. is held by other top lawyers in the same geographic and legal practice area.

Mimi Y. Liu is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Mimi Y., 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 Mimi Y. is held by other top lawyers in the same geographic and legal practice area.

Howard L. Nelson is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Oil and Gas Law. Howard L., who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Howard L. is held by other top lawyers in the same geographic and legal practice area.

David is the managing partner of the Washington, D.C. office, as well as the co-leader of the Investment Management Group. Prior to joining Sullivan & Worcester, David was Special Counsel in the Washington, D.C. office of Gibson, Dunn & Crutcher. He previously served as Assistant General Counsel for Legislation and Investment Company and Adviser Regulation at the Securities and Exchange Commission and as Counsel to SEC Commissioner Aulana Peters.

Brian E. Hayes is a top attorney recognized by Best Lawyers in the practice area(s) of Labor Law - Management. Brian E., who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian E. is held by other top lawyers in the same geographic and legal practice area.

Sarah C. Aviles is a top attorney recognized by Best Lawyers in the practice area(s) of Elder Law, Litigation - Trusts and Estates and Trusts and Estates. Sarah C., who practices law in Fairfax, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sarah C. is held by other top lawyers in the same geographic and legal practice area.

Jeff Witt is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Jeff, 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 Jeff is held by other top lawyers in the same geographic and legal practice area.

Kelly Dunbar is a partner in the firm’s Government & Regulatory Litigation and Appellate & Supreme Court Litigation practice groups, and a leader of the firm's Administrative Law Group. He focuses his practice on government and regulatory litigation, administrative rulemakings, constitutional and civil litigation, and appellate matters. Mr. Dunbar regularly counsels clients regarding regulatory strategy and litigation, represents them before administrative agencies, and litigate...

Sara M. Donohue is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Sara M., who practices law in Rockville, Maryland, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sara M. is held by other top lawyers in the same geographic and legal practice area.