Brea California downtown aerial view

Brea Construction
& Business Litigation Firm

If you’re looking for a boutique law firm with an incredible case history in construction and business litigation, look no further than Ghassemian Law Group! Our ability to strategize and defend our clients’ interests pairs with our small-firm expertise and big-firm experience, creating a proven track record of solutions to even the most complex litigations.


Brea in Southern California is home to around 49,737 people as of 2023 and is located south-east of Los Angeles. Founded as crude oil production grew, and then further expanded via citrus production, the area is known for the Brea Mall and the downtown Brea area. Brea is an energetic city, with diverse options for shopping, working, eating, and entertaining. This city boasts luxury homes in gorgeous neighborhoods like Olinda Ranch, Glenbrook, and Village at Brea Summit. Brea is an excellent location for anyone who desires proximity to the big LA city but also wants a dynamic and unique community.


At Ghassemian Law Group, we are experts at handling cases for designers, engineers, construction businesses, CEOs, architects, residential project developers, or owners of custom-built residences. Pursuing your rights through our knowledge and experience, we can tackle even complex construction cases, translating technical terms into language that judges and juries can understand. Every client working with Ghassemian Law Group has access to a team with an intimate understanding of:

Whether you’re an employee fighting for fair pay or a company frustrated with constant legal struggles, Ghassemian Law Group can help. Going the extra mile, past fighting your legal battles in court, we also help you grow your company by sharing knowledge that will help you prevent future legal problems and successfully structure your business contracts. If you work with us, we will free you up to focus on your business instead of becoming mired in legal problems.

Ghassemian Law Group would love to help your business or construction company located in Brea. We strive to offer the best attention to detail, coupled with our big-firm experience, to pursue the outcome you deserve. To begin tackling your legal barriers, contact us today!


Mahyar was a big part in helping start our company and setting up our corporation. She also went to battle with a Billion dollar Corporation to keep our doors open when they tried everything to shut us down.

Danny Lamping

Classic Refrigeration Company

In 2008 -2009, our company was involved in a lawsuit with over 1 million dollars claimed against us. Mahyar Ghassemian handled our case expertly and conscientiously. She explained on a regular basis the progress of our case and how each of the actions of our opponent would ultimately affect our case. At no time did we feel alone or compromised as Mahyar boldly stayed her course which eventually provided us with the satisfactory outcome we had hoped to achieve. She will be our first call should the need arise in the future.

Kelly Owen

Clarion Construction, Inc.

Many years ago an insurance carrier hired Mahyar Ghassemian to defend my construction firm in civil litigation. Not only was Ms. Ghassemian very knowledgeable and competent regarding the legal proceedings, but she was also personally vested in our well-being; she cared what happened. She counseled us regarding the various options, listened to our input and proceeded accordingly. In multiple cases with Ms. Ghassemian, we have never experienced a negative outcome. Today my first call when a potential legal issue is on the horizon is to Ms. Ghassemian. She is both extremely effective and cost conscious.

Russell Patterson

The Patterson Company

Small Firm Value – Large Firm Expertise