Catalina Santos Parkinson

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...

David F. Levy is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. David F., who practices law in Washington, District of Columbia, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David F. is held by other top lawyers in the same geographic and legal practice area.

Joshua B. Waxman is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Joshua B., 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 Joshua B. is held by other top lawyers in the same geographic and legal practice area.

Mr. Cassidy focuses on legal issues raised by cross-border business transactions, including antidumping and countervailing duty proceedings, economic sanctions, export controls and customs issues. He is experienced in devising strategies for using trade law procedures, such as the antidumping laws, to achieve business objectives and in resolving disputes between companies and the US government arising from sanctions, export controls and customs laws. Mr. Cassidy served as General Counsel of t...

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.

Jiayan Chen is deeply experienced in the regulatory, transactional and strategic issues that arise when leveraging health information, biospecimens and technology to drive healthcare innovation and quality. She guides stakeholders on privacy compliance and research compliance and in the context of strategic initiatives and collaborations as they seek to harness the power of data, machine learning, DNA sequencing and technologies to develop and deploy new products and solutions and address cha...

Since joining Regan Zambri Long in 2013, attorney Chris Regan has served as a creative and dedicated advocate for injured clients. In that time, he has built a strong track record of outstanding results for his clients, including numerous seven- and eight-figure verdicts and settlements. He has successfully handled cases involving car crashes (including the leading local case on Uber’s and Lyft’s responsibility when their drivers are at fault), defectively unsafe product design, M...

Kristi L. Wolff is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law. Kristi 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 Kristi L. is held by other top lawyers in the same geographic and legal practice area.

Chair of the Firm’s Employment, Labor, and Benefits Practice, Amy blends a direct and practical approach to HR challenges and conflicts by partnering with business organizations to create sustainable policies that prevent, address, and resolve workplace challenges, including multi-state compliance, hybrid and remote work, and fostering inclusive environments. Amy represents employers of all sizes in a variety of industries in the following areas of employment law: Counseling and complia...

Richard E. Lear practices primarily in the litigation area emphasizing insolvency, Chapter 11, and creditors’ rights and bankruptcy issues. For 25 years, Mr. Lear has served as counsel for institutional lenders, franchisors, leasing companies and landlords in connection with individual and business Chapter 11 cases and in workouts. He has also counseled clients regarding the effect of bankruptcy and insolvency on proposed bond refundings, conventional loan refinancings and other transac...