Andrew Demirchyan

Lisa Barnett Sween is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Lisa Barnett, who practices law in San Francisco, California, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa Barnett is held by other top lawyers in the same geographic and legal practice area.

For more information, please visit www.gibsondunn.com/lawyer/murphy-mary-g/ .

Holding Corporations Accountable Robert J. Nelson has played a leading role in the firm’s False Claims Act (fraud against the government law), automotive , defective products , mass torts , tobacco , consumer fraud and environmental cases, taking on many of the world’s largest corporations and holding them accountable. He has served as court-appointed Lead or Co-Lead Counsel in numerous state and federal coordinated proceedings, as well as in more than 40 class actions. Robert lik...

Neil Sekhri is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law. Neil, who practices law in San Francisco, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Neil is held by other top lawyers in the same geographic and legal practice area.

Robert A. Roth is widely regarded as one of the leading family law appellate specialists in California. He has over 30 years’ experience as an appellate practitioner and more than 25 published (and scores of unpublished) appellate opinions to his name. Robert has won twice in the California Supreme Court, and notably represented the successful respondent in In re Marriage of Ostler and Smith (1990) 223 Cal.App.3d 33, a seminal case that established the method California courts use every...

Sam Zucker is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice and Corporate Law. Sam, who practices law in Redwood City, California, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sam is held by other top lawyers in the same geographic and legal practice area.

Susan Horst is a specialist in writs of mandamus and prohibition in the California appellate courts. For more than 31 years, Susan served as the writ attorney for the California Court of Appeal for the First District, Division One, in San Francisco. Susan is one of the only practicing attorneys in California to have devoted virtually her entire career to appellate writs. As writ attorney in the First District, Susan evaluated thousands of pre- and post- trial writ petitions in all types of ci...

Donald P. Sullivan is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law and Employment Law - Management. Donald P., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Donald P. is held by other top lawyers in the same geographic and legal practice area.

Marianne C. Koepf is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Marianne C., who practices law in San Francisco, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marianne C. is held by other top lawyers in the same geographic and legal practice area.

Myron Sugarman concentrates his practice in the areas of estate planning, deferred compensation, taxation of nonprofit and charitable institutions, and family and personal tax planning. His experience extends to all areas of federal and local taxation. Prior to entering private practice, Myron served in the Office of The Judge Advocate General, U.S. Army at the Pentagon. A former president of the San Francisco Tax Club, he is a member of numerous professional organizations, including the San ...