Born in Chicago Heights, Illinois, Jeffrey R. Marquart attended the Illinois Institute of Technology where he was on the Dean’s List and graduated in 1984 with a Bachelor of Science in Mechanical Engineering. Thereafter, he attended the University of Notre Dame Law School where he was the recipient of the American Jurisprudence Award in Commercial Transactions and received his Juris Doctorate in 1987. Following his admission to the Illinois and Federal Bars in 1987, he practiced with Leydig, Voit & Mayer, a prominent Intellectual Property firm in Chicago, with an emphasis on Patent, Trademark and related litigation. In 1989, he was admitted to the California Bar and joined a prominent Los Angeles firm, where he specialized in Patent Litigation.

In 1991, he left the intellectual property arena to join a civil litigation firm specializing in products liability and personal injury. In 1997, he founded the Tustin based firm of Smith and Marquart.

In 2006, he formed the Marquart Law Group to establish a highly technical and innovative boutique firm specializing in the representation of those who have been injured by the wrongful conduct of individuals and business entities. Mr. Marquart’s experience includes the prosecution of highly complex products liability cases involving industrial machinery, automobile steering systems, stability and crashworthiness, tire design, residential appliances, playground equipment and children’s toys, furniture and restraint systems. He has prosecuted a multitude of cases involving significant vehicular accidents involving automobiles, motorcycles, bicycles and trucks/tractor trailers.

In addition to these areas, Mr. Marquart has successfully litigated multiple matters involving premises liability, dog bites/attacks, uninsured motorists and business disputes.

He resides in Coto de Caza, California with his wife Lisa, and their three daughters, Katherine, Caroline and Courtney. He actively participates in mountain biking, ice hockey and golf. He is an automobile enthusiast and collector. Above all, he is a staunch supporter of his alma mater, the University of Notre Dame.

Areas of Practice:

Wrongful Death
Personal Injury — Plaintiff
Elder Law
Litigation & Appeals
Motor Vehicle Accidents — Plaintiff
Products Liability Law
Toxic Torts
Business Formation
Commercial Disputes

Bar Admissions:

U.S. District Court Central District of California, 1989
California, 1989
Illinois, 1987
U.S. District Court Northern District of Illinois, 1987
U.S. Court of Appeals Federal Circuit, 1988


Notre Dame Law School, Notre Dame, Indiana, 1987
Honors: American Jurisprudence Award – Commercial Transactions

Illinois Institute of Technology, Chicago, IL, 1984
Honors: Dean List
Major: Mechanical Engineering

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Attorney Info

NameJeffrey Reed Marquart Esq.
TitleManaging Partner
Fax(949) 589-0160
Phone(949) 589-0150
Address22342 Avenida Empresa #250 Rancho Santa MargaritaCalifornia 92688

Office Hours

Monday - Friday9:00am -5:00pm
SaturdayBy appointment