Mahyar Ghassemian, ESQ

Mahyar Ghassemian, ESQ

Mahyar Ghassemian, ESQ

Managing Attorney

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.

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.


I can’t say enough positive things about the incredible team at this attorney’s office. From the moment I spoke with them on the phone, I knew I was in capable hands. Even though I am a North Carolina business I had a very complex case in California. The law firm and attorneys were the best of the many, many law firms I interviewed. I can not say enough how easy they are to work with from start to finish.
Their expertise is unmatched. They navigated the complexities of my case with professionalism and confidence, leaving no stone unturned. Their depth of knowledge and strategic thinking were evident every step of the way.
What truly sets them apart is their genuine care for their clients. They listened to my concerns, answered my questions promptly, and ensured I felt supported throughout the entire process. It’s clear they care about their clients and they’re in it to make a real difference in people’s lives.
The professionalism and attention to detail displayed by this office are outstanding. They kept me informed, were always on time, and made sure I understood every aspect of my case. They turned a potentially stressful situation into a manageable one.
I’m incredibly grateful for the exceptional service and favorable outcome they delivered. If you’re seeking legal representation that combines expertise, compassion, and dedication, look no further. This attorney’s office is a true gem and worthy of every one of these five stars!

Christopher Grouse

Grouse Industries, Inc.

Mahyar and her team possess a wealth of construction and business law expertise. Expertise to both guide a client away from litigation and, if not possible, to skillfully represent them in court.

Thierry Montoya

AlvaradoSmith APC

Mahyar Ghassemian and her firm are the best construction dispute litigators and negotiators in the industry. Mahyar is an expert in this area. Her firms knows the law and are very tenacious in obtaining the best results for their clients. I have been involved in very lengthy litigation as co-counsel in a very big case and jury trial. Mahyar is one of the hardest working and most effective advocates I have ever had the privilege of working with.

Paul Hoffman

Hoffman Legal Corporation

Small Firm Value – Large Firm Expertise