William L. Buus

Top rated business litigation attorney in Brea, California

Buus Law Group APC
William L. Buus
Buus Law Group APC

Practice Areas: Business litigation, Intellectual property litigation, Securities litigation

Licensed in California since: 1995

Education: Southwestern Law School

Selected to Super Lawyers: 2009 - 2011, 2015 - 2023 Selected to Rising Stars: 2006

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Buus Law Group APC

3 Pointe Dr
Suite 110
Brea, CA 92821 Visit website


William L. Buus is founder of Buus Law Group APC; located in Brea, California. His practice area includes all matters of business litigation such as contracts, intellectual property, corporate shareholder/securities, unfair competition/antitrust, and employment. Additional representation includes injured clients in cases of serious injury and wrongful death.

Mr. Buus is admitted to practice before the United States Supreme Court, the Federal Circuit Court of Appeals, the 9th Circuit Court of Appeals, the U.S. District Courts for the Central, Northern and Southern Districts of California, and the California Supreme Court. In 1991, he graduated from California State University with a Bachelor of Arts in accountancy, then to Southwestern Law School, where he obtained a Juris Doctor, graduating with honors in 1995.

Since 2009, Mr. Buus has had an Avvo rating of “Superb” and was recognized as one of Orange County’s top lawyers by OC Metro Magazine. In 2012 and 2013, he was named one of Orange County’s top 10 litigators, and for his commitment to legal ethics and professional accomplishments, he earned the highest peer rating possible of AV Preeminent* from Martindale-Hubbell.

After completing the required number of jury trials, Mr. Buus was admitted as an associate of the American Board of Trial Advocates (ABOTA), where he helps promote and preserve the right to trial guaranteed by the Constitution’s Seventh Amendment. Over the years, he has received millions of dollars for his clients, including a judgment of $2.8 million in a retaliatory employment case and a $2.9 million jury trial judgment in a breach of contract/trademark case. He has written for Los Angeles Lawyer magazine and the Los Angeles Daily Journal.

* AV®, AV Preeminent®, Martindale-Hubbell Distinguished and Martindale-Hubbell Notable are certification marks used under license in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell® is the facilitator of a peer review rating process. Ratings reflect the anonymous opinions of members of the bar and the judiciary. Martindale-Hubbell® Peer Review Ratings™ fall into two categories – legal ability and general ethical standards.

Practice areas

Business litigation, Intellectual property litigation, Securities litigation
  • 50% Business litigation
  • 30% Intellectual property litigation
  • 20% Securities litigation

First Admitted: 1995, California

Professional Webpage: https://www.buuslaw.com

Other Outstanding Achievements:
  • Passed Uniform Certified Public Accountants Examination, 1992
Educational Background:
  • Southwestern University School of Law, J.D., 1995
  • California State University, Long Beach, BS Accountancy, 1991
Scholarly Lectures/Writings:
  • Article, Author, Reclaim the Civil Right, Duty, and Power of Jury Service, Los Angeles Lawyer Magazine, 2013
  • Author, Proving Actual Damages in Real Estate Non-Disclosure Actions, Orange County Trial Lawyers Association's "Gavel" Magazine, 2005
  • Author, Get Expert Help to Decide on Recoverable Damages, Los Angeles Daily Journal, 2004
  • Author, Plan Carefully to Discover Who Controls Corporation, Los Angeles Daily Journal, 2004
  • Author, Proving Loss of Profits is Daunting But Manageable, Los Angeles Daily Journal, 2004
  • Author, Lawyers Should Encourage Jurors to Question Witnesses, Los Angeles Daily Journal, 2004
  • Speaker, Principles of the Carmack Amendment to the Interstate Commerce Act, 1999
  • Author, Reduce Sidewalk Liability with a Maintenance Plan, Common Assessment Magazine, 1998
  • Barsegyan v. Torabian - Mr. Buus represented a securities broker-dealer in a FINRA arbitration in which the client alleged another broker-dealer wrongfully failed and refused to pay her share of commissions owed from certain investment transactions.  After the hearing, the arbitrator awarded Mr. Buus's client her share of the commissions., 2018
  • Boulter v. Boulter - Mr. Buus represented a shareholder who was accused by another shareholder of misappropriating millions of dollars of corporate assets.  After trial, the court found in favor of Mr. Buus's client, who was completely exhonerated of all wrongdoing.  , 2017
  • Quoc Viet Foods v. VV Foods - Mr. Buus represented a large soup manufacturer against another soup manufacturer for trademark infringement.  At trial, the jury found that the client's trademark was valid and infringed and that the defendant infringed the trademark.  Ultimately, the Ninth Circuit Court of Appeals upheld that verdict., 2016
  • Universal Products v. Omega Products: a $500,000 jury verdict in a breach of contract case in which a pool plaster supplier sued a manufacture for selling defective pool plaster product to the supplier., 2015
  • Silver State v. FuturaNet: a $200,000 verdict after a jury trial in a breach of contract case in which his client, a tour bus operator, sued a travel agent for unpaid bookings., 2015
  • Valerie Boulter v. Christopher Boulter, Orange County Superior Court Case Number 30-2013-00630918: obtained favorable court ruling in a proceeding to determine the fair value of a corporation under Corporations Code section 2000 so that the client was able to buy-out a hostile shareholder., 2014
  • Wakefield v. Olen Properties: successfully defended against copyright infringement actiong brought by sculptor claiming his sculpture was copied by a large real estate developer., 2014
  • Greenlight Financial Services, Inc. v. Internet Brands, Inc., Orange County Superior Court Case Number 30-2012-00558307, obtained a jury verdict of $750,000 for plaintiff in a breach of contract case involving defendant's use of the Greenlight name., 2013
  • Wittenberg v. Beachwalk Homeowners Association, Orange County Superior Court Case Number 30-2011-00507078: On behalf of homeowners, obtained a judicial invalidation of a homeowners association election due to the association's failure to ensure equal access to its media during that election., 2013
  • Protech v. Velox, United States District Court, Central District of California, Case No. 9-4049: represented defendant being sued for breach of a manufacturing contract; defense verdict, 2011
  • Vietnam Telecom International v. Inyang, Los Angeles Superior Court Case No. BC364137: represented defendant in a lawsuit alleging fraud in a telecommunications transaction; judgment for defendant, 2011
  • United States ex rel Begole v. Trenkle, United States District Court, Central District of California, Case No. 6-1104: represented plaintiff in a qui tam/wrongful termination case involving Medicare fraud; judgment for the plaintiff in the total sum of $2.2 million, 2011
  • Richter v. Supa Technology, United States District Court, District of Nevada (Las Vegas), Case No. 8-0005: represented defendant in patent infringement case; jury verdict, 2010
  • Cowle v. Colleary, Orange County Superior Court Case No. 2008-00106023: represented defendant and cross-complainant in an action alleging breach of a covenant not to compete and in a cross-action for payment on a promissory note; verdict for defense and for cross-complainant, 2010
  • Morton Machinery v. JK Main, Orange County Superior Court Case No. 03CC05298: represented defendants in an action alleging the destruction of valuable metalmaking machinery; defense verdict., 2004
  • Burgess v. Martindale, NASD No. 01-02308: represented claimant in NASD arbitration; award for claimint for $300,000, 2003
  • Velox v. Jimray, United States District Court, Central District of California, Case No. 3-480: represented plaintiff in a trademark infringement/breach of contract action; plaintiff verdict for $2.89 million, 2003
  • Spa De Soleil v. Hexachrome, Los Angeles Superior Court, Case No. LC051058: represented plaintiff in action for breach of contract and products liability; judgment for plaintiff, 2002
  • Stilwell v. Disney, Orange County Superior Court Case No. 8077621: represented defense in a trip and fall personal injury lawsuit; defense verdict, 2000
  • Garlich v. Town Center Assn, OC Superior Court, Case No. 767076: represented defense in a slip and fall personal injury lawsuit; defense verdict., 1995
Bar/Professional Activity:
  • 2020-Present: OCBA Master Lawyers Division, 2020
  • 2012-Present: American Board of Trial Advocates, Associate, 2020
  • 2011-Present: California State Bar, Litigation Section, 2020
  • 2011-Present: Orange County Bar Association, 2020
  • 2007-Present: California State Bar, Intellectual Property Law Section, 2020
  • United States Supreme Court, 2015
  • United States District Courts for the Northern District of California, 2013
  • United States Court of Appeals, Ninth Circuit, 2009
  • United States Court of Appeals for the Federal Circuit, 2005
  • United States District Court, Southern District of California, 2002
  • Pro Hac Vice admissions in several states, including New York, Texas, Washington, Nevada, and Delaware.
  • United States District Court, Central District of California, 1995
  • California State Bar, 1995
  • 2015-2020, AV - Preeminent, Martindale-Hubbell, 2020
  • 2009-2011, 2015-2020, Super Lawyer, Super Lawyer Magazine, 2020
  • 2009-2020, Rated "10" (Superb), AVVO, 2020
  • 2009-2014, Top Orange County Lawyer, OC Metro Magazine, 2014
  • 2006, Rising Star, Super Lawyer Magazine, 2006
  • 2004, Invited to Million Dollar Advocates Forum, 2004
  • 1995, Graduated Cum Laud, Southwestern University School of Law, 1995
  • 1993-1994, Law Review, Southwestern University School of Law, 1994
  • 1993, Invited to Moot Court Honors Program, Southwestern University School of Law, 1993

Office location for William L. Buus

3 Pointe Dr
Suite 110
Brea, CA 92821



12 Years Super Lawyers
1 Year Rising Stars
  • Super Lawyers: 2009 - 2011, 2015 - 2023
  • Rising Stars: 2006

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