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Mark B. Wilson, Business Attorney in Newport Beach, California

Over 38 years of legal practice · focused on Business, Estate Litigation, and General

Klein & Wilson

Newport Beach, CA

Practicing business in Newport Beach since 1988.

38+
Years practicing
1
Bar admission

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Quick answer

Mark B. Wilson is an attorney based in Newport Beach, CALIFORNIA. The practice focuses on Business, Estate Litigation, and General. Mark has over 38 years of legal experience. Currently practicing at Klein & Wilson.

Based in
Newport Beach, CALIFORNIA
Experience
over 38 years
Known for
Business · Estate Litigation · General
  • Handles Business, Estate Litigation, and General matters from Newport Beach, CALIFORNIA.
  • Over 38 years of practice as a licensed attorney.
  • Recognized with Lawyer of the Year — Trade Secrets Law (Orange County) (2023).

About Mark B. Wilson: Mark B. Wilson is an attorney based in Newport Beach, CALIFORNIA. The practice focuses on Business, Estate Litigation, and General. Mark has over 38 years of legal experience. Currently practicing at Klein & Wilson.

Areas of practice

Legal matters Mark takes on

Mark concentrates on business, estate litigation, general, ip, and litigation. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.

Business cases in Newport Beach, California

Mark takes business matters in Newport Beach, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Estate Litigation cases in Newport Beach, California

Mark takes estate litigation matters in Newport Beach, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

General cases in Newport Beach, California

Mark takes general matters in Newport Beach, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

IP cases in Newport Beach, California

Mark takes ip matters in Newport Beach, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Litigation cases in Newport Beach, California

Mark takes litigation matters in Newport Beach, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Biography

Meet Mark B. Wilson — business lawyer in Newport Beach

Mark B. Wilson is an attorney based in Newport Beach, CALIFORNIA. The practice focuses on Business, Estate Litigation, and General. Mark has over 38 years of legal experience. Currently practicing at Klein & Wilson.

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. Mr. Wilson was recognized as one of the elite trial attorneys in Orange County by OC Register Metro magazine. 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. There are only four attorneys in Orange County who have this specialization.

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.

Mark's approach to business cases

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,…

Clients Mark works with

Mark reviews new inquiries case-by-case for business, estate litigation, and general matters in Newport Beach and the surrounding California area.

Credentials

Education, bar admissions, and languages

  • Loyola Marymount University

    — · 1988

  • University of Southern California

    — · 1985

Jurisdictions

Mark's state bar admissions

  • California

    1988 · ACTIVE

Mark studied at — in Loyola Marymount University and — in University of Southern California.

Law school and academic background

Mark completed — in Loyola Marymount University and — in University of Southern California. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in California is where that training gets applied to real client questions.

Recognition

Recognition and thought leadership

Mark has received 30 formal recognitions from bar associations, industry bodies, and peer-review services.

  • Lawyer of the Year — Trade Secrets Law (Orange County)

    2023

  • Lawyer of the Year — Trade Secrets Law (Orange County)

    2021

  • Best Lawyers in America — Commercial Litigation

    2026

  • Best Lawyers in America — Ethics and Professional Responsibility Law

    2026

  • Best Lawyers in America — Legal Malpractice Law - Plaintiffs

    2026

  • Best Lawyers in America — Litigation - Intellectual Property

    2026

  • Best Lawyers in America — Litigation - Real Estate

    2026

  • Best Lawyers in America — Trade Secrets Law

    2026

  • Best Lawyers in America — Additional Areas of Practice:

    2026

  • Best Lawyers in America — Professional Malpractice Law - Plaintiffs

    2026

  • Best Lawyers in America — Special Focus:

    2026

  • Best Lawyers in America — COVID-19

    2026

  • Best Lawyers in America — Awards:

    2026

  • Best Lawyers in America — Daily Journal, 2022 to Present, Top Professional Responsibility Lawyer - Plaintiffs' Legal Malpractice

    2026

  • Best Lawyers in America — Orange County Trial Lawyers Association, 2019 Trial Lawyer of the Year in Legal Malpractice

    2026

  • Best Lawyers in America — America's Top 100 Attorneys

    2026

  • Best Lawyers in America — America's Top 100 Bet-the-Company Litigators

    2026

  • Best Lawyers in America — AV Rating, the Highest Rating for Skill and Ethics by Martindale-Hubbell

    2026

  • Best Lawyers in America — AVVO Rating of 10

    2026

  • Best Lawyers in America — Best Law Firms U.S. News & World Report, 2016 - Present

    2026

  • Best Lawyers in America — OC's Most Notable Lawyers, OC Metro, August 2012

    2026

  • Best Lawyers in America — OC's Top Attorneys - Raising the Bar and Setting New Precedents, OC Metro, 2013

    2026

  • Best Lawyers in America — Super Lawyers, 2005 - Present

    2026

  • Best Lawyers in America — Super Lawyers Top 100 Southern California List, 2019 - Present

    2026

  • Best Lawyers in America — Super Lawyers Top 50 Orange County List, 2017 - Present

    2026

  • Best Lawyers in America — Super Lawyers, Corporate Counsel Edition, 2008

    2026

  • Best Lawyers in America — The American Lawyer Top 500, 2013

    2026

  • Best Lawyers in America — The Dean's List - OC's Top Attorneys, OC Metro, August 2011

    2026

  • Best Lawyers in America — The Legal Eagles - OC's Top Attorneys, OC Metro, August 2010

    2026

  • Best Lawyers in America — Top Lawyer, Coast Magazine, January 2016

    2026

Legal awards and honors

Lawyer of the Year — Trade Secrets Law (Orange County) (2023). Lawyer of the Year — Trade Secrets Law (Orange County) (2021). Best Lawyers in America — Commercial Litigation (2026). Best Lawyers in America — Ethics and Professional Responsibility Law (2026). Best Lawyers in America — Legal Malpractice Law - Plaintiffs (2026). Best Lawyers in America — Litigation - Intellectual Property (2026).

Locations

Mark B. Wilson's office in Newport Beach

Mark's primary office is at 4770 Von Karman Avenue, Newport Beach, California, 92660. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Klein & Wilson

4770 Von Karman Avenue

Newport Beach, California 92660

Open in Google Maps

Client feedback

Client reviews of Mark B. Wilson

Mark has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire Mark B. Wilson — what to expect in your first consultation

Working with a new business attorney should feel structured. Here's how the first two conversations with Mark usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Mark charges for the initial consult. That fee is credited toward representation if you retain Mark's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Mark will tell you what matters and what doesn't.

Questions to ask a business attorney in Newport Beach, California

A short list to run through before you commit: How many business matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Mark

Mark discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every business matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Mark confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Mark's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Mark B. Wilson

  • How much does it cost to hire Mark for a business case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Mark walks through the likely range during the consult so there are no surprises.

  • Does Mark offer a free consultation?

    Mark charges for the initial consult; that fee is credited toward representation if you retain Mark's office. Some business attorneys offer free consults — check Mark's current terms during booking.

  • How long do business cases in California typically take?

    Simple business matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Mark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Mark take my case if I'm outside Newport Beach?

    Mark is licensed in California. Matters governed by California law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Mark will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Mark?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Mark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Mark accepting new business clients right now?

    Mark's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Business attorneys serving Newport Beach, Los Angeles and San Francisco in California

Mark handles business matters throughout California. Each city below is a direct link into the search page for verified business attorneys in that community.

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