John P. Barker

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.

Bob Symon practices in the areas of construction and government contract law. Clients routinely seek out Bob’s advice to assist in such matters as protesting procurement results, interpreting the Federal Acquisition Regulation (FAR), prosecuting claims under the Contract Disputes Act (CDA) or insuring compliance with ethical obligation to name just a few. Bob has enjoyed considerable success prosecuting and defending bid protests at the Government Accountability Office (GAO) and the Uni...

Through his actions and collective experience, Haydn Richards has demonstrated that he is one of the foremost leaders in state financial services law and financial services licensing matters. Haydn is a nationally recognized leader on mortgage and financial services licensing matters, including counseling clients relating to the formation of financial services companies and strategic acquisitions. He regularly interacts on behalf of financial services companies with federal and state regulato...

Marisa C. Terrenzi is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Marisa C., who practices law in Tysons, Virginia, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marisa C. is held by other top lawyers in the same geographic and legal practice area.

Sally Ann Hostetler is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Construction. Sally Ann, who practices law in Reston, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sally Ann is held by other top lawyers in the same geographic and legal practice area.

Cathy Burgess leads the firm’s FDA Compliance and Enforcement Team and FDA practice. FDA-regulated entities benefit from Cathy's common-sense advice for achieving business objectives that avoid compliance and enforcement risks. With more than 30 years of extensive experience in the areas of CGMP regulation and product risk management, she provides strategic counseling and works with clients to identify and address potential risks throughout the product life cycle. Cathy advises clients ...

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

Brad Friend focuses his practice on Construction Law and Litigation – Construction, with an emphasis on construction law litigation, claim preparation, and dispute resolution. Based in McLean, Virginia, Brad represents clients in complex construction disputes across multiple jurisdictions. With more than twenty years of experience, he has served as lead counsel in multi‑million dollar matters involving a wide range of construction-related issues. Brad’s construction litigation exp...

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...

Mr. Colten was born in New York City and has been a long-time resident of Virginia. After serving as Assistant Commonwealth's Attorney in Fairfax County for two years, Mr. Colten entered private practice in Northern Virginia. He was a founding member and principal of Surovell, Jackson, Colten & Dugan, P.C. and its predecessor and successor firms, prior to forming Colten | Watson | Vincent Law Group P.C. In 1965, Mr. Colten received his B.S. with a major in sociology from American Universi...