Declan Leonard

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

Jennifer E. Fried is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law. Jennifer E., 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 Jennifer E. is held by other top lawyers in the same geographic and legal practice area.

David M. Lynn is a partner in the Washington D.C. Office of Morrison & Foerster, and is co-chair of the firm’s Corporate Finance practice. He is the former Chief Counsel of the Division of Corporation Finance at the U.S. Securities and Exchange Commission. Mr. Lynn is a highly respected securities advisory counsel who provides guidance to clients ranging from Fortune 500 to newly-public companies on securities law compliance, as well as counseling on corporate governance, executive ...

Ivan Schlager is an international trade and national security partner in the Washington, D.C., office of Kirkland & Ellis LLP. Ivan provides counsel on structuring, negotiating and documenting transactions to address regulatory issues, including approval by the Committee on Foreign Investment in the United States (CFIUS). He represents a diverse group of clients ranging from defense companies, major telecommunications providers, and media and technology companies to private equity firms a...

R. Peyton Mahaffey is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Trusts and Estates and Personal Injury Litigation - Plaintiffs. R. Peyton, who practices law in Fairfax, Virginia, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which R. Peyton 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.

Personal injury lawyer Joseph Cammarata is a dual board-certified civil trial attorney, nationally known for his tenacity and perseverance in zealously representing clients in all stages of litigation. Mr. Cammarata's practice is concentrated in the areas of serious personal injury, brain injury, wrongful death and medical malpractice. He also successfully champions the rights of victims of discrimination and civil rights abuses. He has litigated against insurance companies, governmental enti...

Scott Sergio is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Scott, 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 Scott is held by other top lawyers in the same geographic and legal practice area.

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

Christopher C. Muha is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Christopher C., 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 Christopher C. is held by other top lawyers in the same geographic and legal practice area.