Mahyar Ghassemian | مهیار قاسمیان

About Attorney Mahyar Ghassemian

Mahyar Ghassemian is the founding attorney of Ghassemian Law Group in Mission Viejo, California. With a career spanning over two decades, she is known for her strategic legal counsel and effective litigation in complex business and construction matters. Ms. Ghassemian earned her master’s degree in physics with honors from California State University, Long Beach, before obtaining her Juris Doctor 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 had clerked during law school. Throughout her legal career, Ms. Ghassemian has represented a wide range of clients, from national construction firms to local businesses. Her experience includes defending and prosecuting cases involving contract disputes, construction defect claims, business torts, and real estate litigation. She has litigated both high-stakes multi-million-dollar lawsuits and lower-value matters with the same level of diligence and expertise. Her scientific background gives her a unique edge in analyzing technical evidence and navigating the complexities of construction litigation. She frequently works with expert witnesses, engineers, and forensic specialists to craft compelling arguments that withstand scrutiny in court. Her clients value her ability to simplify complex matters and translate them into actionable strategies. Ms. Ghassemian is also skilled in alternative dispute resolution, including arbitration and mediation. Many of her clients prefer her out-of-court settlements that save time, money, and stress. However, when trial becomes necessary, she is a formidable advocate in the courtroom, respected for her preparation, professionalism, and results. Beyond her legal practice, Ms. Ghassemian is deeply committed to mentorship and education. She frequently conducts seminars and legal workshops to educate business owners, contractors, and other professionals about their rights and responsibilities under California law. She is also involved in community development efforts in Orange County and supports initiatives promoting women in law and science. Fluent in multiple languages and culturally attuned, she provides personalized service to a diverse client base. Her ability to connect with clients on a personal level, combined with her legal acumen, has made her one of the most trusted business and construction attorneys in Mission Viejo.