Our team of seasoned attorneys is dedicated to achieving our clients’ objectives in the most cost-effective and practical way possible.
Matthew K. Yan

matthew-yanMatt Yan has a diverse practice covering all areas of civil and commercial litigation and business law, including contract litigation and negotiation, fraud and fiduciary duty claims, employment disputes, intellectual property and trade secrets, and construction and real estate disputes. Matt’s clients include established corporations, burgeoning start-ups, founders and entrepreneurs, and public and governmental entities. Matt’s practice also extends beyond traditional litigation to general counsel services, negotiations, and internal investigations. And in those cases where litigation can’t be avoided, Matt has prevailed in every stage, including in jury and court trials, in private arbitrations, on demurrer and summary judgment, and on appeal, both in state and federal courts.

Before joining Moscone Emblidge & Rubens in 2010, Matt was a litigation associate at Pillsbury Winthrop Shaw Pittman in San Francisco. During law school, Matt represented indigent criminal defendants with both the San Francisco Public Defender and Boston University Criminal Defender Program. Matt has also won several Moot Court awards in both writing and oral advocacy, and has published a note in the Boston University Public Interest Law Journal, which has been cited by state courts in New Jersey in favor of recognizing marriage equality as a constitutional right.

Matt has been repeatedly recognized as a “Rising Star” in the Northern California edition of Super Lawyers and has volunteered as a coach for the Balboa High School Mock Trial Team. In 2015, Matt was recognized by the San Francisco Bar Association’s Justice and Diversity Center as an Outstanding Volunteer in Public Service.

Representative Matters

  • Advises and counsels businesses and non-profit entities on product, marketing, and contractual issues, employee policies, trade secret protection, and legislative and regulatory issues.
  • Represents corporations in multi-million dollar contract disputes with vendors, joint-venture partners, and competitors.
  • Prevailed in federal jury trial on behalf of the founder and CEO of a Bay Area security company alleging violation of an asset purchase and earn-out agreement.
  • Successfully defended public contractor and the City of San Diego in a software trade secret dispute and won a half-million dollar attorneys’ fee judgment.
  • Counseled individual business partners in partnership and intra-corporate disputes over financial management and internal practices.
  • Prevented company-wide employee class action by efficiently negotiating settlements of dozens of wage and hour complaints.
  • Prevailed on behalf of entrepreneurs accused of fraud and breach of fiduciary duty relating to unsuccessful business ventures.
  • Represented contractors and property owners in litigation alleging violations of construction contracts, undue construction delays, and poor workmanship.

Published Decisions & Articles

  • Orion Communications, Inc. v. Superior Court, 226 Cal. App. 4th 152 (2014).  Argued and won petition for writ of mandate in procedural matter relating to use of peremptory challenges by a newly added party.
  • Dispatch & Tracking Solutions, LLC v. City of San Diego, 2016 WL 1407739 (Cal. Ct. App. 2016).  Drafted successful brief on behalf of AutoReturn and the City of San Diego in a multi-year software trade secret dispute.
  • “What’s In A Name”: Why the New Jersey Equal Protection Guarantee Requires Full Recognition of Same-Sex Marriage, 17 B.U. Pub. Int. L.J. 179 (2007).  Argued for recognition of marriage equality under the New Jersey state constitution.


  • Boston University School of Law, J.D. cum laude, 2008
  • University of California, Berkeley, B.A. with honors, 2005


  • Cantonese
  • Spanish



phone: 415.362.3599
fax: 415.362.2006
email: yan@mosconelaw.com