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Donald L. Morrow

Senior Counsel, Litigation Department
T 1(714) 668-6291
F 1(714) 668-6391

Donald Morrow is senior counsel in the Litigation practice of Paul Hastings and is based in the firm’s Orange County office. He concentrates his practice in complex commercial and class action litigation and has tried more than 40 cases to judgment, both jury and non-jury. He is a Fellow in the American College of Trial Lawyers.

Mr. Morrow has tried several extremely high profile cases. He represented The Irvine Company (which owns one-sixth of Orange County, California) in its massive shareholder appraisal case against Joan Irvine Smith. This case, tried over 17 months in Michigan, was possibly the largest shareholder appraisal case ever tried to conclusion. The result was described by The Wall Street Journal as a "major victory" for The Irvine Company.

He regularly represents clients in connection with technology and intellectual property matters. He has handled numerous cases involving patents, trademarks, and unfair competition claims. Mr. Morrow also regularly handles antitrust and unfair competition cases under both federal and state law. He has substantial experience defending clients in class action litigation.


  • Recently represented a major medical device manufacturer in a 3-week trial of a patent infringement case in the Central District of California. Plaintiff already had won two trials against our client on the same patent involving earlier versions of the same device. Plaintiff's pretrial demand was for $240 million. The jury returned a defense verdict of no infringement in favor of our client. Mr. Morrow successfully represented one of the world's largest technology companies in patent and trademark actions brought against entities that manufactured replacement ink-jet cartridges for client's ink-jet printers.
  • Currently is lead counsel for a major airline in two MDL federal antitrust cases pending in New York and Los Angeles, respectively, involving allegations of price fixing in different aspects of the airline industry.
  • Represents a Fortune 100 company in major MDL antitrust action against allegations of price fixing in the chemicals industry.
  • Currently represents a major real estate services company in a RICO and fraud class action pending in federal court in Idaho where damages sought exceed $8 billion.
  • Successfully represented one of the world's largest companies in numerous separate class actions brought by borrowers, lessees, and other claimants on behalf of retail and commercial customers of our client.  We obtained summary judgment or defeated class certification in most of these cases, and settled the others on terms very favorable to our client.

Accolades and Recognitions

  • Honored by Best Lawyers as its 2011 Orange County Area Bet-the-Company Litigator of the Year
  • Initial president in 1997 and 1998 of the Orange County chapter of the Association of Business Trial Lawyers
  • Received the honor in 1996 of being selected as one of four trial lawyers to participate in the local bar association's inaugural "Top Gun" competition, which involved the presentation of a mock closing argument by each of the participants to a real jury.  At the conclusion of the competition, Mr. Morrow was chosen the best advocate; i.e., the "Top Gun", by the jury
  • Awarded the Jurisprudence Award by the Anti-Defamation League “in recognition of commitment to the highest ideals of the legal profession and dedicated service to the community” in 2007

Professional and Community Involvement

  • Director of the Orange County Bar Association
  • Past-president and current director of the Orange County Bar Foundation. Chaired the Bar Foundation's annual golf tournament, its major fundraising event, 14 times


  • University of Southern California Law School, J.D., 1975 (University of Southern California Review, member)
  • University of Southern California, A.B., 1972