Mahyar Ghassemian | مهیار قاسمیان
Maximum 1 rating per user
(Practicing since 1999)
27405 Puerta Real #250
Mission Viejo
California
CA 92691
United States
Mahyar Ghassemian | مهیار قاسمیان
About Mahyar Ghassemian
Mahyar Ghassemian is the founding attorney of Ghassemian Law Group and currently manages the firm. Ms. Ghassemian received a master’s degree in physics from California State University in Long Beach with honors and received her law degree from Western State University College of law, graduating Cum Laude in 1999. She was sworn in by the Presiding Justice of the California Court of Appeal, for whom she clerked while in law school in December 1999.
Since then she has served as a business and construction litigator with some big name firms in Southern California. In 2010, she left a partnership in a well-known civil litigation firm to start her own firm Ghassemian & Associates which then became Ghassemian Law Group in 2013.
Since 1999, Ms. Ghassemian has defended numerous National and California construction companies and a multitude of businesses in a variety of lawsuits ranging from multi-million-dollar complex litigation matters to smaller cases.
Construction Practice:
On the construction side, Ms. Ghassemian represents Contractors, Developers, Architects, Engineers, Custom Homeowners as well as other companies involved in construction.
Her master’s degree in physics has performed an essential role in construction defect cases where an attorney has to assemble the right team of experts to opine about the defects, as well as be able to translate the experts’ complex scientific language for the clients, opposing counsel and the court. Her in-depth knowledge of the Construction Industry is essential for proper understanding of her clients’ issues and problems.
Business Practice:
Ms. Ghassemian’s business clients consist of an array of small and medium sized businesses, including Entrepreneurs, Business Centers, Tech Companies, Medical Groups, Dentists, Accountants and other corporate entities. Ms. Ghassemian’s experience in the corporate world has nurtured the business transactional and litigation practice of the firm, which ranges from corporate structuring and governance to litigation of a variety of business disputes.
She is also personal counsel to numerous Southern California Construction Companies as well as a multitude of other businesses. In this capacity, she helps her clients prevent litigation or minimize the cost of litigation through proper planning of their corporate structure, drafting the right contracts for them to use in everyday business as well as providing assistance with difficult clients, negotiations and sale or purchase of businesses.
Specialties
- Construction & Public Works Litigation
- Multi-Million Dollar Business Disputes: Commercial Business Disputes
Representative Case Wins
- Public Works Dispute ($3 M)
Successfully defended a general contractor against a city’s claims of delay and defective work; case resolved in client’s favor, saving tens of millions. - Business Litigation against a multi-national, multi-billion dollar corporation ($15 M)
Clients individual liability defeated and business saved. - Multi-State Business Dispute ($10M+)
Represented shareholders in a corporate governance battle, obtaining injunctions and ultimate settlement preserving client’s equity stake. - Construction Defect Litigation ($5M+)
Defended an architectural firm in a multi-party construction defect claim, significantly reducing client’s exposure and shifting liability to other parties.
Credentials & Background
- J.D., Western State University College of Law, Cum Laude (1999)
- Masters’ Degree in Physics, California State University, Long Beach (1982)
- Clerked for the Presiding Justice, California Court of Appeal
- Over 25 years’ litigation experience across construction and business law
- Fluent in English, Persian, Turkish, and French; conversant in Spanish
Legal Approach & Differentiators
- Combines scientific/technical training (Physics M.S.) with legal strategy for evidence-heavy disputes
- Focuses on drafting the proper contracts and Advice During the Course of Construction to avoid costly litigation
- Track record of reducing or eliminating liability in multi-party, high-stakes cases
Clientele
- Contractors, subcontractors, and design professionals
- Real estate developers and investors
- Businesses facing high-stakes partnership or shareholder disputes
Thought Leadership
- Frequent speaker for construction and business trade associations (SCCA, AGC, NAWBO)
- Frequent speaker for legal forums, including the Orange County Bar Association and the Inns of Court
- Published in industry journals on litigation strategy.
Community & Personal
Active in Orange County professional associations; enjoys hiking, fitness, and multilingual engagement.
Other Interests:
When she is not busy cultivating her firm, Ms. Ghassemian’s time is occupied by the array of high-ranking positions she holds in various professional organizations, which are enumerated in the Honors and awards page of this site.
Ms. Ghassemian regularly lectures on hot topics for the Construction Industry and writes articles for the SCCA and other construction industry magazines.
Ms. Ghassemian lives in Laguna Niguel California with her two children. She loves to spend her free time traveling, working out, hiking Orange County’s fabulous beaches, studying languages, and volunteering for organizations such as NAWBO, AGC, SCCA and OCBA. She is fluent in English, Persian, Turkish, French and conversant in Spanish.
Contact Mahyar Ghassemian, ESQ
- Phone:
(949) 436-2785 - Office:
27405 Puerta Real #200 and #250, Mission Viejo CA 92691
3333 Michelson Dr #300, Irvine, CA 92612
458 Via De La Paz, Palm Desert, CA 92211
Mahyar Ghassemian | مهیار قاسمیان
Mahyar Ghassemian | مهیار قاسمیان




