James A. Lassart

James Lassart

88 Kearny Street
10th Floor
San Francisco, CA 94108

Phone: 415.788.1900
Fax: 415.393.8087


  • All courts of the State of California
  • District of Columbia
  • State of New York
  • Supreme Court of the United States
  • US Court of Appeals for the Armed Forces
  • US Court of Appeals for the Ninth Circuit
  • United States District Court for the State of California: Central, Eastern, Northern and Southern Districts
  • United States District Court of the State of New York: Eastern and Southern Districts


  • J.D., University of San Francisco
  • B.A., Santa Clara University

James A. Lassart


Mr. Lassart's practice focuses on general business litigation, legal malpractice, employment litigation, fraud, defense of actions involving the Civil Rights Act, and white collar crime defense.

Most recently, Mr. Lassart was managing partner of the San Francisco office of Ropers, Majeski, Kohn & Bentley. Prior to that, Mr. Lassart served 12 years as an Assistant District Attorney in San Francisco where he tried complex homicide cases followed by serving five years with the United States Attorney's office prosecuting organized crime.

While serving as an Assistant United States Attorney, Mr. Lassart was the Coordinator of the Northwest Region of The President's Organized Crime Drug Enforcement Task Force (OCDETF) supervising operations in the Northwestern United States and Hawaii. He is a seasoned trial attorney who has tried over 100 jury trials appearing in both state and federal courts.

Mr. Lassart is a former member of the Board of Governors of the University of San Francisco, a former member of the Board of Directors of the California District Attorney's Association, and a former president of the San Francisco Municipal Attorney's Association. He has been an instructor at Hastings College of the Law Trial and Advocacy Clinic in San Francisco and a lecturer and panelist for the California Continuing Education of the Bar. He is currently a co-author of a chapter of the CEB book on Criminal Law Procedure and Practice. Mr. Lassart has served as an acting examiner for the State Bar in hearings to guarantee fitness of candidates for admission. He is a member of the American Board of Trial Advocates (ABOTA), The Fellows of the American Bar Foundation and the Association of Certified Fraud Examiners. Mr. Lassart has been included in the selection of the California Super Lawyers magazine listing 2005 through 2013.

In addition to his work with the firm, Mr. Lassart is a retired Brigadier General in the United States Army Reserve. In his last assignment as a General Officer he was responsible for the legal operations of the USAR Judge Advocate General Corp.

Professional Associations

American Bar Association (ABA)

American Board of Trial Advocates (ABOTA)

Associate of Certified Fraud Examiners

Bar Association of San Francisco

Edward J. McFetridge American Inn of Court

US Department of Justice, United States Attorney, Former Assistant

Northgate Cottage Association

American Bar Foundation

University of San Francisco Alumni Association

The District of Columbia Bar Association

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