Skip to content Mark S. Posard


San Francisco
315 Pacific Avenue
San Francisco, CA 94111

3 Parkcenter Drive
Suite 200
Sacramento, CA 95825

6781 N. Palm Avenue
Suite 102
Fresno, CA 93704


J.D., University of Pacific, McGeorge School of Law

  • Moot Court Honors Board
  • Recipient, Highest honors in oral advocacy

B.A., University of Redlands


2017 Client Choice Award

Rising Stars® distinction in the fields of Employment & Labor (2009 -2015, Law & Politics)

Attended the FDCC’s Leadership Institute at the University of Chicago’s Graduate School of Business

Legal & Legislative Chair for the Peninsula Chapter of the Northern California Human Resources Association


Mark S. Posard is a senior partner in the California offices of GRSM. He has a diverse commercial litigation and trial practice with core focuses on employment, representation of directors and officers, and sub-specialties defending common interest developments (i.e., homeowner associations).  He has won numerous jury trials and binding arbitrations, in addition to resolving many cases through mediation. 

Mark has significant experience representing businesses, management, executives, directors, officers and shareholders in virtually every area of employment law and commercial disputes.  This includes discrimination, workplace harassment, ADA/disability claims, compensation, unfair competition, trade secret violations, unfair labor practices, OSHA, and wage and hour class actions. Additionally, Mark routinely handles state and federal litigation involving derivative, class, and individual suits defending claims for breach of fiduciary duty, company control, fraud, misappropriation, and business interference. Mark also routinely assists businesses with employment and business-related counseling. In addition, Mark serves as the chair of the firm’s Immigration & Naturalization practice group.

Mark represents clients nationwide, and has experience in other fields including construction, transportation, cargo, tort and product liability, intellectual property, residential and commercial real estate matters and cyber-liability matters. Representative clients of Mark include EPL, D&O, PL, GL, cyber and casualty insurers, large and small hospitality owners and management  companies, construction and transportation companies, national development businesses, and many California educational institutions.

Mark has an array of personal interests. Among them is his passion for world travel with his family.


  • California
Publications & Presentations