Brian E. Tierney

William J. Schnoor Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. William J., who practices law in Boston, Massachusetts, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William J. is held by other top lawyers in the same geographic and legal practice area.

Barry S. Pollack is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Barry S., who practices law in Boston, Massachusetts, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Barry S. is held by other top lawyers in the same geographic and legal practice area.

Dan practiced at the firm between 1987 and 2005, before leaving to become General Counsel at GSI Group, a NASDAQ traded company with a highly diversified portfolio of laser, precision positioning, specialty optics and laser-based system products. He rejoined the firm in 2011 and manages the Litigation Practice. During his career, Dan has tried numerous cases throughout the country in both state and federal courts. His practice includes commercial business disputes involving mergers and acquis...

Harvey practices primarily in the areas of international and domestic corporate finance and domestic corporate governance, investment management law, securities law, including the Investment Company Act and Investment Advisers Act, and corporation, limited liability company and partnership law. Harvey counsels domestic and foreign clients, and advises clients respecting domestic and offshore investments and transactions. He also counsels on CFIUS compliance in international transactions follo...

Alexander E. Terry is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Alexander E., who practices law in Boston, Massachusetts, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alexander E. is held by other top lawyers in the same geographic and legal practice area.

Eric Christofferson is an experienced trial, litigation, and investigations lawyer in DLA Piper's Boston Office and is a member of the firm's white collar group. Immediately prior to joining DLA Piper, Eric served as an Assistant U.S. Attorney for the District of Massachusetts, leading an array of white collar criminal investigations, trials, and appeals. Eric, whose practice focuses on the life-sciences, healthcare, and financial services sectors, represents corporations and individuals in g...

Lisa R. Haddad is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Lisa R., who practices law in Boston, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa R. is held by other top lawyers in the same geographic and legal practice area.

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

Timothy J. Perla is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Securities. Timothy J., who practices law in Boston, Massachusetts, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Timothy J. is held by other top lawyers in the same geographic and legal practice area.

Steven M. Ellis is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Corporate Law. Steven M., who practices law in Boston, Massachusetts, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Steven M. is held by other top lawyers in the same geographic and legal practice area.