Shannon Nessier

Shannon M. Nessier

Senior Counsel

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Litigation and Dispute Resolution
Litigation and Dispute Resolution
San Francisco

Shannon focuses on representing the firm's litigation clients. Her work concerns the defense of product manufacturers and suppliers and premises owners in personal injury litigation, against individual and class action claims. She also defends clients in Toxic Tort matters. In addition, she has provided advice and litigation defense on matters involving warning label claims, Organic labeling issues under COPA, and Proposition 65 claims.

On top of her litigation experience, she advises firm clients on their obligations to Medicare for medical expense reimbursement and assists in the drafting of settlement language in compliance with the Medicare Secondary Payer Act Of 2007, and has been involved in early assessment and strategy work related to California’s Proposition 37 and its mandatory labeling laws for food producers and distributors.

While attending the University of California, Hastings College of the Law, Shannon served as the executive articles editor for the Hastings Law Journal, interned for the Honorable Katherine Feinstein and volunteered at the San Francisco Superior Court's self-help ACCESS Center.

Prior to joining Hanson Bridgett, Shannon taught, coached and coordinated service programs for Bellarmine College Preparatory High School in San Jose. She was awarded the 2005 Educator of the Year by San Jose Magazine.


"California Adopts Long-Pending Modifications to Proposition 65 'Clear and Reasonable' Warning Regulations," co-author, Proposition 65 Law Alert (September 2016)

"Forecasting Liability While Connecting to the Internet of Things," co-author, USLAW Magazine (Spring/Summer 2016)

"​Proposed Prop. 65 Regulations Make California More Unfriendly Market, Create More Obligations for Businesses," Proposition 65 Law Alert (March 2015)

"​Meeting of Minds on Medicare Is Harder Than It Looks: Negotiating Medicare Settlement Terms," DRI The Whisper Newsletter (February 2015)

"The State Of Arbitration Enforcement In California," co-author, Law360 (April 2014)

"Be Smart About the SMART Act: Handling the Modified Medicare Secondary Payer Act," The Whisper (August 2013)

"California Supreme Court Limits Liability for Manufacturers,"  Hanson Bridgett Product Liability Alert (January 2012)

"Attorney Client Relationship and Attorney Client Privilege," Lawyering by James Wagstaffe and William Wegner, Rutter Publishing (January 2012)

"Jury Waiver Through Arbitration and Judicial Reference," co-author, The Marin Lawyer Newsletter (October 2011)

"Fundamentals of Drafting Arbitration Clauses, " co-author, Hanson Bridgett Alert (August 2011)

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Blog Posts

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"Effective Demonstratives," co-speaker, PLI Day Evidence Seminar (October 2013)

"Medicare - The Hot Topic In Personal Injury Defense Work," CLE Program (November 2010)

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Professional Affiliations

Defense Research Institute (DRI) Young Lawyers Committee, Second-Vice Chair

Defense Research Institute (DRI), Women in the Law (subcommittee), Young Lawyers (subcommittee)

Association of Defense Counsel, Northern California

Bar Association, San Francisco

Judicial Clerkships

Legal Intern for the Honorable Katherine Feinstein, San Francisco Superior Court

Academic Distinction

Thurston Honor Society

Cali Award for Excellence, Community Property

Cali Award for Excellence, Negotiations

Best Oral Argument, Moot Court

Witkin Award in Criminal Law

Witkin Award in Legal Writing and Research

Phi Beta Kappa


J.D., magna cum laude, Order of the Coif, University of California, Hastings College of the Law (2009)

B.A., magna cum laude, Phi Beta Kappa, Santa Clara University (1999)

Admissions And Courts


U.S. District Court for the Northern District of California

San Francisco

415-995-5812 Direct Phone
415-995-3502 Fax

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