Derek M. Bush

Noah M. Rich is a top attorney recognized by Best Lawyers in the practice area(s) of Qui Tam Law. Noah M., who practices law in Washington, District of Columbia, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Noah M. is held by other top lawyers in the same geographic and legal practice area.

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

Mark S. Popofsky is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law and Litigation - Antitrust. Mark S., who practices law in Washington, District of Columbia, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark S. is held by other top lawyers in the same geographic and legal practice area.

Rick Fischer’s practice focuses on retail financial services, privacy, and data security. For over 40 years, he has advised banks, retailers, insurers, technology and other companies throughout the United States on the full range of financial services and payment system issues. His practice has a special emphasis on privacy, data security, e-commerce, technology, and financial services joint ventures, as well as compliance and enforcement matters involving the Consumer Financial Protect...

Stephen Weissman is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law and Litigation - Antitrust. Stephen, who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen is held by other top lawyers in the same geographic and legal practice area.

Matthew W. Morrison is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Matthew W., who practices law in Washington, District of Columbia, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew W. is held by other top lawyers in the same geographic and legal practice area.

Eric Zimmerman is a recognized Medicare law and policy authority and registered lobbyist who represents clients before Congress and administrative agencies, and helps clients navigate federal legislative and regulatory processes related to Medicare coverage, coding, reimbursement and compliance. He primarily counsels and represents hospitals and health systems, ambulatory surgery centers, clinical laboratories, pharmaceutical, biotechnology and device manufacturers and suppliers, medical trad...

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

Thomas M. Cusick focuses his practice on complex family law negotiation and litigation. His pragmatic approach provides effective and efficient solutions for his clients. Tom believes in exploring all possibilities of resolving a matter outside of the courtroom. He is a strong proponent of negotiation and mediation. If litigation is unavoidable, Tom has significant first chair trial experience handling a variety of family law matters. Tom’s practice encompasses all areas of family law i...

Vincent “Vince” McKnight, Jr., is the Managing Partner of Sanford Heisler Sharp’s Washington, D.C., office and Co-Chair of the firm’s Whistleblower Practice. He also represents clients in employment discrimination and wrongful discharge cases. Vince represents whistleblowers in sealed and unsealed False Claims Act/qui tam suits under investigation by the United States and other governmental stakeholders. He has achieved significant success in such cases, including the ...