Skip to main content

Mahyar Ghassemian

Real estate Attorney at Mission Viejo, CA

5.0   17 reviews
Free consultation Virtual consultation available
Free consultation Virtual consultation available
  • Licensed for 24 years
    State CA
    Acquired 1999
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Mahyar

Learn Mahyar’s areas of practice.



I believe in being positive and cherishing everyday of one's life as a present. I incorporate this positive and cooperative attitude in my legal practice and help my clients by maintaining civility and high integrity in the course of a legal issue or lawsuit.


I believe one should never compromise on ethical issues. Keeping a good sense of morality and high values helps me in my everyday life as well as in resolving my clients' problems better and more successfully.


Family and long-time friends are a high priority in my life. I come from a family of three children and have two children of my own who are both in college now.


I am an avid reader who likes many different types of books from the classics to modern day fiction such as works of John Grisham and Nelson DeMille. I love the beach and on any Sunday morning you can find me hiking in Dana Point or Laguna Beach.


I like to keep active and exercise regularly at the gym. This is a way to release the pressures of taking on people's problems and keeps my mind and body free of stress.


My favorite activity is traveling. I believe travel expands one's horizons and opens the mind to different cultures and interesting customs.





Client's Choice 2013,2012
Client's Choice
2013 2012

27405 Puerta Real
Suite 250, 200
Mission Viejo, CA, 92691
Ghassemian Law Group
3333 Michelson Drive
Suite 300
Irvine, CA, 92612
Hide locations


5.0 / 5.0
  17 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Client's Choice 2013
Client's Choice
Client's Choice is an Avvo award granted to attorneys with a significant number of client reviews over 4 stars in a given year.
Posted by Tom | April 9, 2012
Best Attorney I've Ever Worked WIth
I have been working with Mahyar for over a year with a very complex issue. She has worked very hard to protect me and my family. Without her guidence and expertise we would be in trouble. Mahyar has been there every step of the way and I am so happy she representing us. I couldn't be more pleased.
Posted by Kim | April 7, 2012
Honest and Ethical
My experience with Mahyar has helped make a terrible situation easier. She not only offered excellent legal service, but was empathetic and offered honest advice and guidance. I feel protected.
Posted by Marie | December 10, 2015
This review is from a person who hired this attorney.
| Hired Attorney
Corporation Filing
My attorney filed documents to incorporate my company in March and even before the formal contract, she made herself and assistant available to answer questions and concerns that I and my business partner had on several occasions. She is very knowledgeable, courteous, and professional throughout every encounter. I would highly recommend the use of her firm, as I have already made multiple referrals . I believe that the success of my business is in part because of the confidence I have knowing this expert is on my team!
Read less
Posted by Eric | May 22, 2015
An outstanding attorney committed to her clients
Mahyar made sure I understood every aspect of my case, from the possible outcomes to the overall process. Not only did she win my case, but she also exceeded my expectations. I truly would recommend her to any person in need of a dedicated, honest, and knowledgable attorney.
Posted by Kathy | November 17, 2014
Representation by a Professional with Integrity
Mahyar is an exceptional attorney. She has strong moral principles and took on an unscrupulous attorney and his client with integrity. I was being sued and Mahyar counter sued and won the case. Mahyar carried me through this unpleasant experience and I am very greatful for all of the hard work she did for me.
Posted by Diana | July 13, 2014
Having Mahyar just a phone call away is so reassuring and provides great comfort - need a great attorney call Mahyar!
I have known Mahyar for over 3 years now. I am a Real Estate Broker and Owner of a Real Estate Firm and I called on Mahyar for legal advice on how to set up my business. For years now my business partner and I were set up as a partnership and we knew that we needed expert legal advice. Mahyar met with us and was very thorough and detailed oriented on how their are various ways to own a business. She gave us different scenarios and advised us to also talk with our CPA for tax purposes. She made is so easy and painless for us. She now handles all of our business affairs and is so efficient at what she does! On other note, I was in a car accident 2 years ago and after I calmed down, the first person I called was Mahyar. She gave me specific instructions on what to do and handled this case for me as well. Again made it so easy and painless for me! Mahyar cares about her clients and is always looking out for their best interests. I have recommended her to many of my own clients who have used Mahyar's services to create LLC's for their real estate investments. Thank you Mahyar!
Read less
Posted by Oscar | July 5, 2014
I strongly recooment Attorney Mahyar Ghassemian. Trustworthy. Honest. Hard Working.
Attorney Mahyar Ghassemian worked very hard and prevailed by winning our claim. I strongly recommend her Law Office to anyone in need of a great PI Attorney.
Posted by Soheyla | July 5, 2014
I recommend Ghassemian law firm for any business related transactions.
I used Ghassemian law firm for a business transaction contract. Mahyar reviewed the contract and made several suggestions and improvements and was very diligent. She also was knowledgeable and well versed. My calls and emails were responded promptly and informatively.
Posted by Oscar | January 12, 2013
Outstanding service and follow through!
Attorney Ghassemian was a blessing to our case. She kept us informed of all details about the case, answered all our calls and kept fighting until the case settled. We are very satisfied how everything turned out. We gladly recomend her. Must call her and give her a chance to fight for you.
Posted by Mandana | April 18, 2012
Honest & Dependable Legal Service
I feel very privileged as a client and also a friend, to have known Mahyar Ghassemian for many years. She is a very knowledgeable, enthusiastic & dedicated attorney in the areas of construction, business & real estate law as well as, personal injury. Mahyar is "the well-informed, caring and honest attorney" that you would want to be fighting for your rights & representing you, in complex legal issues. My family has used Mahyar Ghassemian’s legal services in construction and business related cases for several years. We have always been very impressed and pleased, by the outstanding professional and friendly service we have received from her & her office. Mahyar has always gone above & beyond the standards of legal practice; to provide clients with a comprehensive and straightforward explanation of their legal problems. She is especially talented in helping clients explore and find the best possible approach, to resolving legal issues.
Read less
Posted by Russell | April 18, 2012
Effective and Cost Conscious
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.
Read less
Posted by Sussan | April 17, 2012
Exellent Service
Mahyar is extremely knowledgable, articulate, responsive, and helpful. She was an exellent choice for me, I would strongly recommend her to everyone.
Posted by Ali | April 16, 2012
Excellent Lawyer
She helped and advised me in a legal matter regarding a construction case in a farm in North Sandiego. She was honest, hard working,knowledgeble, and respectful.
Posted by Sep | April 16, 2012
Not your typical Attorney...a real Go-Getter!
Mahyar is hands down the best attorney I have ever worked with. She has assisted me on several of my real estate contracts and has been a life-saver on several different occasions. She looked out for me like no other attorney ever has and did an amazing job in helping me through the most stressful legal problems in my businesses. I've worked with over 20 attornies in several different states, and unlike most attornies Mahyar focuses on educating her clients and making real estate law easy to understand. You can easily grasp Mahyar's vast knowledge and strength within the first few minutes of speaking wtih her
Read less
Posted by Mark | April 16, 2012
Empathetic and Hard-Working Lawyer
Ms Ghassemian is a very knowledgeable attorney who has worked hard on my behalf and has always been available to keep me updated and answer my inquiries. I could not be happier with the way she has handled my case from inception.
Posted by anonymous | April 16, 2012
Review of Mahyar Ghassemian Esq
As an owner of a 30 year old construction company I have engaged the legal services of Ms. Ghassemian on several occasions, after my first experience with her was so positive. Every subsequent engagement has been just as rewarding in terms of her professionalism and obtaining the best possible outcome, given the circumstances, for our company. This is an attorney who is not only very knowledgable in construction related law, but also genuinely cares about her clients. Ms. Ghassemian's obvious intelligence and background in physics made it easy for her to readily grasp the nuiances of my particular construction related legal challenges and to handle them so well. I have dealt with many attorneys over the years and and I cannot think of one that I would rate higher.
Read less
Posted by Zoreh | April 9, 2012
Great caring attorney
Mahyar Ghasemian is very caring, knowledgeable. responsible and very helpful. She helped me with my divorce case even though my case was not her usual practice but she did a very good job. I highly recommend her.
View less reviews


  • Free Consultation 20 minutes
Payment methods
Cash, Check, Credit Card


AVVO RATING 10.0 (Superb)

Work Experience

  • President/Principal Attorney
  • Ghassemian Law Group, APC
  • 2014 - Present
  • Principal Attorney
  • Ghassemian & Associates
  • 2010 - Present
  • CEO
  • Ghassemian Law Group APC
  • 2013 - 2013
  • Attorney, Partner
  • Morrow & White
  • 2006 - 2010
  • Associate Attorney
  • Ford, Walker, Haggerty & Behar
  • 2003 - 2005
  • Associate Attorney
  • Neal, Haushalter & Ray
  • 1999 - 2002
View all work experience


  • Western State College of Law
  • JD - Juris Doctor
  • 1999
  • California State University, Fullerton
  • MA - Masters
  • 1982

Sample of Legal Cases

  • Etebar v. Sierra Pacific
  • Settled through Court Mandatory Settlement Conference
  • DeCinces v. RDI
  • Settled out of court


  • Orange County Bar Association, Solo Practitioner/Small Firm Section
  • Secretary of the Board
  • 2014 - Present
  • Provisors
  • Member
  • 2013 - Present
  • National Association of Women Business Owners
  • Member
  • 2012 - Present
  • Building Trades Network
  • Member
  • 2012 - Present
  • Peter M. Elliott American Inn of Court
  • Board of Directors
  • 2011 - Present
  • Women Lawyers Roundtable
  • Member
  • 2011 - Present
  • OCBA Solo/Small Firm section
  • Member
  • 2011 - Present
  • Laguna Niguel Chamber of Commerce
  • Member
  • 2010 - Present
  • Mission Viejo Chamber of Commerce
  • Member
  • 2010 - Present
  • Laguna Niguel Lion's Club
  • Member
  • 2010 - Present
  • Orange County Bar Association
  • Member
  • 1999 - Present
  • State Bar of California
  • Member
  • 1999 - Present
  • Peter M. Elliott American Inn of Court
  • President
  • 2016 - 2017
  • Orange County Bar Association, Solo Practitioner/Small Firm Section
  • Chairperson
  • 2015 - 2016
  • Business Network International
  • Membership Committee member
  • 2010 - 2012
  • South Orange County School of the Arts
  • Vice President
  • 2007 - 2009
View all associations

Languages Spoken

  • English
  • Farsi

Honors and Awards

  • Remarkable Women; Entrepreneur to Watch
  • National Association of Women Business Owners, Orange County
  • 2014
  • Volunteer Recognition Certificate
  • Orange County Bar Association
  • 2013
  • Distinguished Service as a Legal Research Assistant
  • California Court of Appeal, Fourth Appellate District
  • 1998
  • American Jurisprudence Award in Real Property
  • American Jurisprudence
  • 1998
  • American Jurisprudence Award in Constitutional Law
  • American Jurisprudence
  • 1997
  • American Jurisprudence Award in Civil Procedure
  • American Jurisprudence
  • 1997
  • American Jurisprudence Award in Civil Procedure
  • American Jurisprudence
  • 1996
View all awards

Speaking Engagements

  • Sinking Millennium Tower, Litigation and Repair issues
  • Construction and Real Estate Law
  • 2018
  • Public Contracts in Construction
  • Construction Law
  • 2017
  • Lawyer Disputes and Legal Entities
  • Business Law
  • 2017
  • Western State University Law Practice Management
  • Starting a Law Practice
  • 2013
  • Peter M. Elliott American Inn of Court
  • Ethical Issues of Practicing law in the "Cloud"
  • 2013
  • Peter M. Elliott American Inn of Court
  • Ethics of Lawyer Client Relationships
  • 2013
  • Orange County Bar Association, Solo Practitioner/Small Firm Section Annual Program
  • Seven Essential Steps to Thrive in Today's Economy as a Solo or Small Firm
  • 2013
  • NAWBO Workshop
  • Protecting Your Business
  • 2013
  • Building Trades Network
  • How to Protect your Construction Business
  • 2013
  • Western State University College of Law
  • Panel on Law Practice Management
  • 2012
  • Peter M. Elliott American Inn of Court
  • Ethics Hotline: Recent Developments in The Law Govening Lawyers
  • 2012
  • Law Practice from Different Perspectives
  • Law Practice Mangement
  • 2012
  • Iranian American Society of Engineers & Architects, Monthly Meeting
  • Legal Issues for Engineers & Architects
  • 2011
View all speaking engagements

Attorney endorsements

Received (24)
Given (14)
Endorse Mahyar
Unknown Attorney | Jan 22
Relationship: Fellow lawyer in community
"Mahyar is an extremely impressive attorney, and a lovely person as well! I have had the pleasure of getting to know Mahyar in a variety of professional settings, and am constantly impressed by her positive attitude and wealth of knowledge about a variety of areas of the law. If any of my clients ever have an issue that Mahyar could help with, I would refer them to her with the utmost of confidence."
Construction and development Attorney | Nov 15
Relationship: Fellow lawyer in community
"Mahyar is an exceptional attorney who is quite knowledgeable, courteous and compassionately caring. I highly endorse her."
Construction and development Attorney | May 13
Relationship: Fellow lawyer in community
"I've known Mahyar for several years now and she is a leader and always professional. She is knowledgeable of the law and compassionate towards all. She is an articulate advocate, and these are characteristics every client wants in their attorney. I wholeheartedly endorse Mahyar."
Business Attorney | Dec 09
Relationship: Fellow lawyer in community
"Mahyar Ghassemian cares about her clients. She is a wonderful attorney. She has vast experience and knowledge that are invaluable."
Unknown Attorney | Jan 25
Relationship: Fellow lawyer in community
"Mahyar is not only a very good lawyer, but also a down-to-earth and truly caring person. Her commitment to the profession is obvious in her participation in the Orange County Bar Association and in helping those around her."
Litigation Attorney | Oct 20
Relationship: Fellow lawyer in community
"I have had the honor of knowing Mahyar for some time and I have been impressed with her knowledge of law. She is very generous with contributing her precious time to our local legal community. I endorse, Ms. Ghassemian without reservation."
Unknown Attorney | Apr 29
Relationship: Fellow lawyer in community
"Mahyar is a wonderful person and a fantastic attorney. I would recommend my own friends and family to her without hesitation."
Construction and development Attorney | Apr 21
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Personal injury Attorney | Feb 22
Relationship: Fellow lawyer in community
"I endorse this lawyer. Attorney Ghassemian is experienced and is a prolific responder to Avvo community posed questions demonstrating her willingness to give her time to the community."
Business Attorney | Feb 17
Relationship: Fellow lawyer in community
"Mahyar is a very fine attorney. You will not be disappointed with her skills or wisdom. She is a very impressive person. Mahyar has a very good reputation in the legal community. Speak to her and you will understand why."
Construction and development Attorney | Sep 13
Relationship: Fellow lawyer in community
"Mahyar is a great connector and collaborator who consistently provides thoughtful advice. Her contributions to the organizations to which she belongs are frequent and always valuable."
Construction and development Attorney | Aug 30
Relationship: Fellow lawyer in community
"I have known Mahyar for a while now. She is an attorney with many years of experience in the construction law area. I recommended her to a friend of mine who had a construction law matter and I would not hesitate to do it again as I am confident that Mahyar is diligent, caring and professional when serving her clients."
Business Attorney | Jun 19
Relationship: Fellow lawyer in community
"Mahyar is a wonderful attorney whom I've personally found to be very honest and fair. I have referred clients to her in the past and they have always been pleased with their results. She's responsive, personable, and aggressive, which are all qualities that make her an excellent litigator. I highly recommend Ms. Ghassemian and I would not hesitate to use her services."
Construction and development Attorney | May 17
Relationship: Fellow lawyer in community
"I endorse this lawyer. Mahyar is a smart attorney with a masters in physics, which is useful in a construction defect case. I trust her with my referrals as she is kind, intelligent and a strong advocate for clients with business, personal injury and construction defect needs."
Lawsuits and disputes Attorney | May 08
Relationship: Fellow lawyer in community
"I met Mahyar at numerous networking events and had several occasions to discuss legal issues with her. When an opportunity arose, I referred a matter to Mahyar because I trusted that she would have the skills necessary to resolve the client's issue."
Personal injury Attorney | May 07
Relationship: Worked together on matter
"I endorse this lawyer. She is very knowledgeable and aggressive on the matter. She works within the clients wants and needs to get the best result she can. I would absolutely love to work with her in the future or refer her clients."
Unknown Attorney | May 06
Relationship: Fellow lawyer in community
"I endorse Ms. Ghassemian. She demonstrates a high level of professionalism and is a hard-working advocate. I have seen Ms. Ghassemian demonstrate her legal talent at OCBA's College of Trial Advocacy."
Business Attorney | Apr 24
Relationship: Worked together on matter
"I have known Mahyar for many years and I have worked with her on multiple cases. Mahyar is very knowledgeable and is a vigorous advocate for her clients. I have no hesitation in referring clients to her."
Business Attorney | Apr 24
Relationship: Fellow lawyer in community
"Mahyar balances exceptional professional behavior with an innate ability to be empathetic and concerned about each client and legal issue. Her background enables her to see both sides of matters, and she provides excellent legal services while remaining cost-conscious. Mahyar is conscientious, practical and competent – a winning combination."
Litigation Attorney | Apr 21
Relationship: Fellow lawyer in community
"I have known Attorney Mahyar Ghassemian for a number of years now and do not hesitate to refer clients to her. She is an excellent attorney with a superior understanding of the law, and serves the needs of her clients with integrity and compassion. I have had the pleasure of working with Mahyar in the past and find her to be a true professional with a keen, common sense approach to achieving the client's goals in an efficient, results-driven manner. I am happy to endorse Mahyar for her practice in business and civil litigation."
View more endorsements
Estate planning
Patent infringement
Employment and labor
Chapter 7 bankruptcy
Estate planning
Estate planning
Construction and development
Construction and development
Mission Viejo Real estate Lawyer Mahyar Ghassemian
Mahyar Ghassemian
Real estate Attorney
Mission Viejo, CA
Licensed for 24 years
Free Consultation
Virtual consultation available