Overall Rating
This is an aggregated review score of Avvo and Lawyers.com reviews.
This is an aggregated review score of Avvo and Lawyers.com reviews.
5.0 /5.0
30 Client Reviews
$ 795-845 per hour
About Mark
Biography
A seasoned trial attorney and skilled negotiator, Mark B. Wilson has won nearly every case he has tried and arbitrated. Mr. Wilson lost only one jury trial and obtained a complete reversal on appeal. He has 13 jury trials, 16 court trials, and 14 binding arbitrations under his belt.
Mr. Wilson represents clients in federal and state courts in a variety of matters, including business litigation, legal malpractice, real estate, trade secrets, unfair competition, copyright infringement, construction disputes, and commercial unlawful detainer.
Mr. Wilson’s victories include an $18.5 million binding arbitration award in a breach of contract case, a $2.25 million jury verdict in a premises liability case, a $1.85 million dollar jury verdict in a breach of shareholder agreement case, a $1.8 million binding arbitration award in a legal malpractice case, a $1.4 million jury verdict in a copyright infringement case, a defense verdict where plaintiff sought approximately $1 billion, a defense verdict in a partnership dispute where the client’s existence was at stake, a defense verdict in a real estate dispute where plaintiffs sought approximately $50 million, a defense verdict in an indemnity case where millions of dollars were at issue, and a defense verdict which saved the client approximately $5 million in rental income. His settlements include recovering $97 million in a breach of trust case, $6.6 million in a legal malpractice case, $4.8 million in a legal malpractice case, $4.5 million in a breach of contract case, $3 million in a commercial construction dispute, $2.8 million in an employment dispute, $2.1 million in a legal malpractice action, and $2 million in a lease dispute.
As a meticulous attorney, Mr. Wilson brings to court an eye for detail and a sense of organization essential to winning complex trials.
The Daily Journal, the most widely read legal industry publication, named Mr. Wilson as one of California’s Top Professional Responsibility Lawyers in 2022, 2023, 2024, and 2025. Mr. Wilson has been selected to the Southern California Super Lawyers® list since 2005. From 2017 to the present, he has been listed in the Super Lawyers® Top 50 Orange County List. Mr. Wilson has also been listed in the Super Lawyers® Top 100 Southern California List from 2019 to the present. He achieved an “AV” rating from Martindale-Hubbell, denoting the highest level of professional excellence from his peers. Since 2015, Mr. Wilson has been listed in Best Lawyers, and Best Lawyers named Mr. Wilson “2021 and 2023 Trial Lawyer of the Year” in trade secrets law. Best Lawyers is the oldest and most respected peer-review publication in the legal profession.
Mr. Wilson was the Chair of the Orange County Bar Association’s (“OCBA”) Business Litigation section, the largest section in the OCBA. He was elected to serve on the Board of Directors for the Orange County Trial Lawyers Association (“OCTLA”) and remained on the Board for several years.
In 2019, OCTLA named Mr. Wilson “Trial Lawyer of the Year” in legal malpractice. OCTLA previously named him as a finalist for the “Business Litigation Trial Lawyer of the Year.” In addition, OCTLA twice-recognized Mr. Wilson as “Board Member of the Year” for his contributions to the organization and the legal profession.
From 2016 to 2020, Mr. Wilson was a California State Bar Special Deputy Prosecutor, prosecuting State Bar complaints when the State Bar had conflicts of interest. From 2018 to 2023, he served on the Board of Governors of the Orange County Chapter of the Association of Business Trial Lawyers. From 2016 to 2022, Mr. Wilson served on the Loyola Law School Board of Directors.
Mr. Wilson is a frequent lecturer to bar organizations on modern trial techniques and legal ethics and has authored several articles on trial practice. In 2018, the State Bar of California Board of Legal Specialization certified him as a specialist in legal malpractice law.
In 2020, Mr. Wilson was selected to America’s Top 100 Bet-the-Company Litigators®. Selection to America’s Top 100 Bet-the-Company Litigators® is by invitation only and is reserved to identify the nation’s most exceptional trial attorneys in high-stakes business litigation matters.
Mr. Wilson obtained his Juris Doctor degree from Loyola Law School in 1988 and graduated from the University of Southern California in 1985. He was selected to be on Loyola’s Moot Court team and participated in Loyola’s trial advocacy program which U.S. News and World Report ranked as a top 10 program in the nation. Mr. Wilson began trying cases in law school in a program sponsored by the Los Angeles County District Attorney’s Office.
THE FIRM CLIENTS CALL WHEN WINNING IS EVERYTHING! CALL TODAY!
Practice Areas
2
Practice Areas
Ethics and Professional Responsibility
50%
37 years
Litigation
50%
37 years
Fees and Rates
Cost
Hourly Rates
Payment Methods
- Cash
- Check
Awards
2017 2016
Licenses
Licensed in California for 37 years
State: California
Acquired: 1988
No misconduct found
Location
Gallery
Online Presence
Other places you can find Mark online.
Mark B. Wilson's Reviews
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Practice Areas
Lawsuits & Disputes (12)
Litigation (10)
Business (6)
Contracts & Agreements (4)
Ethics & Professional Responsibility (4)
Arbitration (1)
Construction & Development (1)
Corporate & Incorporation (1)
Guardianship (1)
Insurance (1)
Limited Liability Company (LLC) (1)
Partnership (1)
Real Estate (1)
Residential (1)
What Clients Mention
Showing 1 - 1 of 1 review | Residential
Posted by John | October 09, 2017 | Hired Attorney | Residential
Home Seller Failure to Disclose Multiple Defects
My wife and I purchased a 9 year old house in South Orange County from a seller that failed to disclosed multiple defects that were significant and would be very expensive to repair. Within hours after moving into the house, a major undisclosed defect became very apparent to us. The fun and excitemen...
Mark B. Wilson's Lawyer Endorsements
"I have had the good fortune to work together with Mark on several cases. I was recently retained by Mark as an expert witness in a very complex legal malpractice case. While I knew that Mark has a brilliant legal mind, I was so impressed with his passion, meticulous preparation, attention to detail and how he was able to simplify complicated, complex facts and legal principles into a coherent trial plan. Mark labored diligently, and it became obvious to me that no fact was too obscure to attract his full attention. Mark also is very adept at utilizing courtroom technology to communicate his clients’ story in a crystal clear, easy to understand and compelling way. His assiduousness resulted in his mastery of the court room, and it was apparent that he earned respect, even admiration of his peers, judges and the jury members. In short, I highly endorse Mark as a great trial lawyer based upon his recognized success, excellence, expertise, service, and innovation."
"I was privileged to assist Mark as an expert witness in a complex professional malpractice case. I was impress throughout by Mark's professionalism - his preparation; planning; organization; research; ethics; procedural and substantive legal knowledge; communication skills; and follow-up. Strategically and tactically, he was open-minded, flexible, experienced and intelligent. I thought he made an excellent impression on the jury. He is one of the finest litigating attorneys I have encountered in my 40 years of professional practice."
"I was a retained expert witness for Mr. Wilson in a legal malpractice case. He was representing a child who lost substantial money because of her original lawyer's negligence. The defendant law firm is one of the largest and most powerful in the state, but Mr. Wilson went toe-to-to with them, doing an excellent job at every step of the way. I have been a trial lawyer myself for 33 years now and can assure you that, having seem him in action, Mr. Wilson ranks at the top of any list of trial lawyers."
"Mark is an outstanding litigator and strategist whose impeccable record speaks for itself. But even setting aside his incredible legal acumen, he is one of the best human beings I’ve has the pleasure of knowing. Sincere, honest, and hardworking, he is an absolute pleasure to be around. I highly recommend Mark, and hope that you have the opportunity to have him work on your behalf."
"Mark stands out among his peers. He has an exceptional ability to handle complex litigation matters and works tirelessly for his clients to obtain the best possible result. Mark is also well-equipped and prepared to take a case to trial, if necessary."
"I have referred numerous matters to Mark with complete confidence that the client is in very good hands. Mark is a true "business" litigator -- he understands the client's business objectives and is able to help achieve them through strong, efficient and effective advocacy. And should the case proceed to trial, Mark is an experienced and highly skilled courtroom attorney with a proven track record of success."
"Mark is one of the hardest working lawyers I know. In my experience with him he has always been straightforward, calm, extremely well prepared, and effective. I have nothing but good things to say about Mark and his approach to litigation and problem solving."
"Mark is exceptionally skilled at positioning high exposure litigation for settlement beneficial to his clients. On two occasions I've observed Mark's complete preparation and aggressive litigation tactics result in settlements highly favorable to his clients which would have been otherwise unavailable."
"Mark is one of the sharpest lawyers in Orange County. His clients adore him and his trial record speaks for itself. He is respected by the judges, his peers, his colleagues and especially his clients. You cannot go wrong hiring Mark"
Luke Carlson
Lawsuits and disputes lawyer
Steven Mindel
Family lawyer
Michelle Carder
Insurance lawyer
Imran Vakil
Intellectual property lawyer
Michael Barth
Tax lawyer
Paul Kramer
Contracts and agreements lawyer
Luke Anderson
Litigation lawyer
Dimitri Gross
Litigation lawyer
Eric Little
Insurance lawyer
Gerald Klein
Litigation lawyer
Experience
Honors
2025
Super Lawyer, Super Lawyers
2024
Super Lawyer, Super Lawyers
2023
Super Lawyer, Super Lawyers
2022
Top Professional Responsibility Lawyer-Plaintiffs' Legal Mal., Daily Journal
2022
US News and World Report, Best Lawyers
2022
Top 50 Orange County California Attorneys, Super Lawyers
2022
Top 100 Southern California Attorneys, Super Lawyers
2022
Southern California Super Lawyers, Super Lawyers
2022
Best Law Firms, U.S. News & World Report
2022
Super Lawyer, Super Lawyers
2021
Best Law Firms, U.S. News & World Report
2021
Super Lawyer, Super Lawyers
2021
2021 Best Lawyers Trial Lawyer of the Year - Trade Secrets, Best Lawyers
2021
Top 100 Southern California Attorneys, Super Lawyers
2021
Top 50 Orange County California Attorneys, Super Lawyers
2021
Southern California Super Lawyers, Super Lawyers
2021
US News and World Report, Best Lawyers
2020
Best Law Firms, U.S. News & World Report
2020
Southern California Super Lawyers, Super Lawyers
2020
Super Lawyer, Super Lawyers
2020
Top 100 Southern California Attorneys, Super Lawyers
2020
Top 50 Orange County California Attorneys, Super Lawyers
2020
Best Lawyers, U.S. News & World Report
2019
Super Lawyer, Southern California Super Lawyers
2019
Best Law Firms, U.S. News & World Report
2019
Top 100 Southern California List, Super Lawyers
2019
Top 50 Orange County List, Super Lawyers
2019
Best Lawyers, US News and World Report
2019
Trial Lawyer of the Year, Legal Malpractice, Orange County Trial Lawyers Association
2018
Super Lawyer, Southern California Super Lawyers
2018
Best Law Firms, U.S. News & World Report
2018
Top 50 Orange County List, Super Lawyers
2018
Best Lawyers, US News and World Report
2017
Super Lawyer, Southern California Super Lawyers
2017
Best Law Firms, U.S. News & World Report
2017
Top 50 Orange County List, Super Lawyers
2017
Best Lawyers, US News and World Report
2016
Best Law Firm, U.S. News & World Report
2016
Super Lawyer, Southern California Super Lawyers
2016
Best Lawyers, US News and World Report
2016
Top Lawyer, Coast Magazine
2015
Best Lawyers, US News and World Report
2015
Super Lawyer, Southern California Super Lawyers
2014
Super Lawyer, Southern California Super Lawyers
2013
OC Metro, OC's Top Attorneys - Raising the Bar and Setting New Precedents
2013
Super Lawyer, Southern California Super Lawyers
2012
Super Lawyer, Southern California Super Lawyers
2012
OC Metro, OC's Most Notable Lawyers
2011
Super Lawyer, Southern California Super Lawyers
2011
The Dean's List - OC's Top Attorneys, OC Metro Magazine
2010
Super Lawyer, Southern California Super Lawyers
2010
The Legal Eagles - OC's Top Attorneys, OC Metro Magazine
2009
Super Lawyer, Southern California Super Lawyers
2008
Super Lawyer, Super Lawyers Corporate Counsel Edition
2007
Super Lawyer, Southern California Super Lawyers
2006
Super Lawyer, Southern California Super Lawyers
2005
Super Lawyer, Southern California Super Lawyers
N/A
AV Rating, Martindale-Hubbell®
N/A
America's Top 100 Bet-the-Company Litigators, Bet-the-Company Litigators
N/A
America's Top 100 Attorneys, America's Top 100 Attorneys
N/A
AVVO Rating 10.0 Superb, AVVO
Work Experience
1994 - Present
Partner, Klein & Wilson
Associations
2018 - Present
State Bar of CaliforniaCalifornia certified specialist in Legal Malpractice Law
2017 - Present
Association of Business Trial LawyersBoard of Governors
2004 - Present
Association of Business Trial LawyersMember
2000 - Present
Robert A. Banyard American Inn of CourtMaster Bencher
1996 - Present
Orange County Trial Lawyers AssociationMember
1994 - Present
Orange County Bar AssociationMember
1988 - Present
State Bar of CaliforniaMember
2016 - 2022
Loyola Law SchoolBoard of Directors
2016 - 2016
Orange County Bar Association, Business Litigation SectionChair
2002 - 2008
Orange County Trial Lawyers AssociationBoard of Directors
Sample of Legal Cases
ReadyLink HealthCare v. Lewis, Brisbois, Bisgaard & Smith, LLP
$9 Million
Guild, Inc. v. J.C. Penney
$1.4 Million
Next Pharmaceuticals, Inc. v. Stauber Performance Ingredients, Inc.
$1.5 Million
STM Wireless, Inc. v. Gilat
$1.75 Million
STM Wireless, Inc. v. AmeriData, a Subsidiary of General Electric
$2 Million
CD Listening Bar, Inc. v. Doe Major Accounting Firm
$2 Million
Devore v. Massachusetts Casualty Insurance Company
$1.5 Million
Wesley v. Kifton
$500,000
Affinitec v. Siemens
$5.7 Million
Venture Communications v. Falcon Communications
$26 Million
Doe Corporation v. Doe Corporation (Case Confidential)
$1 Million
Doe Corporation v. Doe Corporation (Case Confidential)
$715,000
Paritcher Khadem-Missagh v. Haroonian
$700,000
Does Corporation v. Roes
$3 Million
Darla L. v. Southland LLC
$2.25 Million
Doe City v. Roe City Attorney (Case Confidential)
$1.5 Million
Doe Law Firm v. Roe Corporation (Case Confidential)
$1.3 million
Education
1988
Loyola Law School, Loyola Marymount University
Juris Doctor
1985
University of Southern California
BS - Bachelor of Science
Speaking Engagements
2019
Monthly Meeting
How to Prepare for and Take “C-Suite” Depositions
2019
Monthly Meeting
The New Rules of Professional Conduct Which Affect Small Firms and Solo Practitioners
2018
Montly Meeting
Marriage and Divorce of Law Firms
2018
Monthly Meeting
The New Rules of Professional Conduct and the Sheppard Mullin Opinion: How They Impact Business Litigators
2018
Monthly Meeting
The New Rules of Professional Conduct
2018
Monthly Meeting
How to Avoid Legal Malpractice and Keep Your License
2018
Annual Seminar
The Ideal Motion to Compel Arbitration
2017
Monthly Meeting
How Real Estate Attorneys Can Avoid Legal Malpractice Claims
2017
Monthly Meeting
Winning Attorney-Client Fee Disputes
2016
Annual Convention of Society of Settlement Planners
Mistakes Lawyers Make Regarding Structured Settlements
2015
Provisors' Lawyers and Legal Professionals Affinity Group
How to Use Multimedia to Make Closing Arguments More Convincing
2014
Orange County Bar Association, Banking and Lending Section
Ethics and Etiquette - Avoiding Malpractice Claims When Representing Financial Institutions & Building Stronger Client Ties
2014
Online Course
How to Avoid Legal Malpractice
2014
Monthly Meeting
Multi-Media Courtroom Presentations
2014
Monthly Meeting
Capturing the Audience's Attention with Multimedia
2014
Business Litigation Monthly Meeting
Using Multimedia to Maximize Impact
2013
Monthly Meeting
Effective Use of Multimedia for Mediation and Trial
2013
Monthly Meeting
How to Avoid Legal Malpractice Claims / Common Mistakes in Legal Malpractice Cases
2013
Monthly Meeting
Ethics and Etiquette - Avoiding Malpractice Claims When Representing Financial Institutions & Building Stronger Client Ties
2010
Business Litigation Monthly Meeting
Cumis Counsel Issues for the Business Litigator
2009
Monthly Meeting
How to Present a Multimedia Closing Argument
2009
Monthly Meeting
Using Video Technology in Case Management, Deposition & Trial
2008
Monthly Meeting
Technology Weapons Every Business Lawyer Must Learn to Use at Trial
2007
Annual Convention
How to Conduct Voir Dire
2006
Monthly Meeting
How to Take a Videotaped Deposition and Get it Into Evidence
2005
Annual Lorman Seminar
Modern Evidence Techniques and Technology
2003
Monthly Meeting
Latest Trends in Jury Selection
2003
Business Litigation Monthly Meeting
How to Conduct Voir Dire
2003
Annual Lorman Seminar
Damages in a Commercial Case
2002
Monthly Meeting
Mock Trials - Everything You Ever Wanted to Know
2001
Monthly Meeting
Litigation in the 21st Century - How to Present a Multimedia Trial
2000
Monthly Meeting
Everything You Ever Wanted to Know About Mock Trials and Focus Groups
2000
Annual Convention
Trying the Business Case on a Contingency Fee Basis
N/A
Seminar
Litigation in the 21st Century
N/A
Seminar
Lecture on Construction Issues
Publications
2020
Today's General Counsel
Cutting Litigation Costs in a Post-Covid World
2020
2020
Today’s General Counsel
Problems When Transactional Counsel Act as Trial Counsel
2018
Orange County Business Journal
Why do Lawsuits Cost So Much Money
2017
Orange County Business Journal
Hire An Attorney Before You Sign That Legal Document
2017
Orange County Business Journal
How to Interview an Attorney to Handle a Business Dispute on a Contingency Fee Basis
2017
Orange County Business Journal
Hold On... to Evidence Potentially Relevant to a Lawsuit
2017
Orange County Business Journal
Have You Reviewed Your Shareholders'/Operating Agreement?
2017
Orange County Business Journal
WARNING - Read Your Binding Arbitration Agreements Carefully
2017
Orange County Business Journal
Treat the Family Business Like a Business
2017
Association of Business Trial Lawyers Report
Law Firm Divorces: Who Keeps the Cases?
2017
Orange County Business Journal
Beware of Hidden Rent Increase Clauses
2017
Orange County Business Journal
WARNING - Protect Your Intellectual Property Before It's Too Late!
2013
2012
The Gavel (OCTLA)
Traps For The Unwary In A Commercial Unlawful Detainer Case
2010
Klein & Wilson Website
Legal Malpractice
2010
Klein & Wilson Website
How to Get Your Attorneys' Fees Reimbursed
2010
The Gavel (OCTLA)
Witness Interviews: Who Is Off Limits and Who Is Fair Game?
2007
The Gavel (OCTLA)
The Trial Lawyer's Screenplay
2006
The Gavel (OCTLA)
Multimedia: An Unforgettable Trial Presentation
2006
The Gavel (OCTLA)
The Do's and Don'ts of Closing Arguments
2005
The Gavel (OCTLA)
The Parole Evidence Rule, the Gatekeeper of Evidence in Contract Cases
2004
Association of Business Trial Lawyers Report
Mock Trials - One of the Most Powerful Tools for Case Evaluation and Trial Preparation
2003
2003
The Gavel (OCTLA)
Everything You Ever Wanted to Know About Choice of Law Issues
1992
1992 Supplement of California Defect Litigation
Contributed to 1992 Supplement of California Defect Litigation, Thomas E. Miller
Languages
English