Legal Malpractice AttorneyBusiness LitigationPartnership LawContract AttorneyIntellectual Property AttorneyCommercial Real Estate Law
Partners and trial lawyers Mark B. Wilson, P.C. and Michael S. LeBoff, P.C. possess decades of experience in the courtroom trying "bet the company" cases with millions of dollars at stake. Klein & Wilson represents both plaintiffs and defendants in business and commercial litigation matters, including contract, partnership, shareholder, real estate, and intellectual property disputes. Additionally, the firm represents injured clients in complex legal malpractice cases. The firm's partners are known for bringing persuasive arguments to life using state-of-the-art multimedia in every major case they try.
It is with sincere gratitude and the highest regard that I recommend Mr. Michael LeBoff.
After a deeply disappointing experience with a large and inefficient firm, finding Mr. LeBoff was nothing short of transformative. His practice reflects the very best qualities one hopes for in legal counsel—a boutique, refined, and highly professional approach where every detail is handled with care, precision, and discretion.
From the very beginning, he inspired confidence. He approached a complex matter with calm authority, absolute clarity, and a level of honesty that is both rare and invaluable. There were no unnecessary complications, no confusion—only thoughtful, strategic guidance delivered with integrity and purpose.
What truly sets Mr. LeBoff apart is not only his capability, but the sense of trust he creates. He has an exceptional ability to take what feels overwhelming and make it manageable, always ensuring that you feel supported, informed, and in control. His composure and professionalism remove stress from what would otherwise be a very difficult process.
In every respect, Mr. Michael LeBoff exemplifies excellence. For anyone seeking counsel they can genuinely rely on—someone capable, principled, and fully committed to achieving the best outcome—I cannot recommend him highly enough.
SL
Sheba LeMasters
Mar 29, 2026
5.0
If you’ve been discouraged in your search for an honest and exceptional law firm, I’m grateful to share that there are still stellar firms you can truly trust. This team is professional, highly knowledgeable, and genuinely committed to advocating for their clients. After experiencing less than satisfactory service elsewhere, working with them has restored my confidence and faith in the kind of representation clients deserve.
WH
Ward Hotze
Feb 25, 2023
5.0
Mark Wilson is the best attorney I have ever worked with. Mark and his team were extremely professional and empathetic in their approach to our situation. They are very efficient with their time and extremely knowledgeable. One of the most impressive things to me was the fact that they provided a budget after initially reviewing our case, and in the end they spent a few dollars less that they had budgeted. That HAS NEVER HAPPEN in all the years I have dealt with a number of attorney’s!! Our case centered on a fee dispute with another law firm, and was resolved to our satisfaction. I would highly recommend Mark and his team to anyone.
MB
Marty Brunn
Jun 7, 2021
5.0
Mark Wilson worked with us on selling our business out of a partnership. The opposing party was not cooperative and the attorney on the other side was subpar. Mark worked diligently and concise to reduce our out of pocket costs. His knowledge of the law in his field is unparalleled. His responsiveness to our questions or concerns were 24/7. He was positively the right choice!! I would refer him to any person or a business of any size.
NN
Norm Nemrow
Feb 5, 2020
5.0
I could not be more satisfied with the work of Klein & Wilson on our behalf in a recent lawsuit that was ultimately settled to our benefit. Mark Wilson was outstanding in every way. His legal skills and intellect are superior and his integrity, professionalism, wisdom and personal concern for us as clients made him truly outstanding.
Frequently Asked Questions About Klein & Wilson LLP®
What types of legal cases does Klein & Wilson LLP specialize in?
Klein & Wilson LLP specializes in business and commercial litigation, including contract, partnership, shareholder, real estate, and intellectual property disputes, as well as legal malpractice cases.
Who are the main partners at Klein & Wilson LLP?
The main partners are Gerald A. Klein, P.C., Mark B. Wilson, P.C., and Michael S. LeBoff, P.C., each with over 20 years of courtroom experience.
What are the office hours of Klein & Wilson LLP?
The office is open Monday through Friday from 9:00 AM to 5:00 PM and closed on weekends.
Where is Klein & Wilson LLP located?
The firm is located at 4770 Von Karman Avenue, Newport Beach, CA 92660, USA.
How can I schedule a consultation with Klein & Wilson LLP?
You can schedule a consultation via their contact page: https://www.kleinandwilson.com/contact/
What payment methods does Klein & Wilson LLP accept?
They accept American Express, Cash, Discover, MasterCard, and Visa.
What categories of law does Klein & Wilson LLP provide services in?
They provide services in legal malpractice, business litigation, partnership law, contract law, intellectual property, and commercial real estate law.
Are there any legal services or law firms near Klein & Wilson LLP?
Yes, nearby legal services include Law Offices of Bruce S Weiner, Andrews & Thornton (divorce and family law), and Shokofeh Amin Consultant (real estate law). These may complement or provide additional options for legal assistance in the area.
What health and wellness services are located near Klein & Wilson LLP?
Nearby you can find health-related services like Agape Natural Health (acupuncture), Lionheart Longevity (medical spa and weight loss), Allied Psychological Services, and Newport Pain and Wellness (massage and chiropractic). These can be convenient for clients seeking wellness support before or after legal consultations.
Are there any dining options near Klein & Wilson LLP?
Carl's Jr., a fast food restaurant specializing in burgers, is nearby, making it convenient for a quick meal before or after your meeting at Klein & Wilson LLP.
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