Jennifer M. Oliver, CIPP/US

How Jennifer Helps Clients

An experienced commercial litigator, Jennifer focuses her practice on complex litigation including defending consumer class actions and multidistrict litigation, defense of class action litigation arising from data breaches and antitrust, as well as advice and counseling. Jennifer has played active roles in several high-profile jury trials, serving as lead counsel in complex mediations, and arguing before courts at both the trial and appellate levels. She also often counsels clients on matters related to privacy compliance and use of ad tech and similar technologies. She is a Certified Information Privacy Professional/United States by the International Association of Privacy Professionals. 

With experience on both the plaintiff and defense side, Jennifer has a deep understanding of the legal strategies that support clients’ business objectives. She started her litigation career at an Am Law 20 firm focusing on complex business litigation, and prior to joining Buchanan, she represented plaintiffs at a major class action and antitrust law firm. She also formed and led the privacy, advice and counseling, and merger control practice group at her previous firm. A strong advocate of pro bono work, Jennifer was a member of the team in the seminal U.S. Supreme Court case Ashcroft v. Iqbal. She also continues to be an active member in her local legal community as a Board Member for the San Diego Volunteer Lawyers Program.

What Clients Can Expect

Jennifer builds relationships and works closely with clients to understand their long-term business objectives. With that trust built, Jennifer builds legal strategies that advance those objectives with a clear focus on client values, priorities, and goals.

I believe that understanding a client’s business and goals is the essential first step to achieving success.

Outside the Office

A mother of two children, Jennifer can often be spotted cheering them on at flag football games, and theater performances, and other activities. When she has free time, she enjoys exploring San Diego’s beaches, cooking, and traveling.

Awards and Recognition

• Super Lawyers – Antitrust Litigation – 2022, 2023, 2024, 2025
• National Law Journal – Plaintiffs’ Attorney Trailblazer – 2022
• San Diego Business Journal – Women of Influence in Law – 2022
• Mondaq Thought Leading Co-Author – Antitrust/Competition Law – 2022
• The American Lawyer – West Trailblazers – 2021
• San Diego Business Journal – Women of Influence in Law – 2021, 2023, 2024
• Member, Fellows of the American Bar Foundation – 2021
• National Law Journal – Elite Boutique Trailblazer – 2020
• Member, California Lawyer’s Association – Executive Committee – 2020
• Daily Journal – Top 40 Under 40 in California – 2020, 2021
• Daily Journal – Top Plaintiffs Lawyers – 2022
• Lawdragon 500 Leading Plaintiff Financial Lawyers – 2019, 2020
• Member, University at Buffalo School of Law Dean’s Advisory Council
• National Law Review Go-To Thought Leader – 2019, 2021
• International Advisory Experts Award: Complex Business Litigation in California – 2018
• Sanctuary for Families Above and Beyond Achievement Award, for an excellent record of pro bono work on behalf of victims of domestic violence

Proof Points

• Served as court-appointed co-lead counsel for a certified settlement class of over 4 million consumers in one of the first landmark data breach settlements under the California Consumer Privacy Act (CCPA).
• Served as chief antitrust counsel for a large private equity firm in a major acquisition valued at more than $500 million, including obtaining HSR clearance from the Federal Trade Commission.
• Represented the National ATM Council and a certified class of independent ATM Operators alleging that Visa and Mastercard used their market power to illegally fix and artificially increase ATM access fees in violation of Section 1 of the Sherman Act. 
• Served as lead counsel in defense of approximately 40 individual arbitration demands alleging violation of California and Florida wiretapping laws, violation of the Federal Wiretap Act, statutory larceny, and common law invasion of privacy and intrusion upon seclusion claims.  Secured complete victory and an award of costs and fees after full day evidentiary hearings.
• Served as lead counsel in defense of putative class action alleging use of a Meta Pixel on online pharmacy website without consent violates CIPA, the Federal Wiretap Act, the California Medical Information Act, California Computer Data Access and Fraud Act, and the California Consumer Privacy Act.
• Served as lead attorney tasked with litigating and negotiating successful class wide settlements in multiple nationwide data breach class actions.
• Serve as lead counsel in defense and settlement of consumer class action alleging violation of Florida unfair competition laws related to medical records billing.
• Serve as lead California attorney defending and prosecuting counterclaims for U.S. subsidiary of international conglomerate related to termination of major supplier contract following quality failures and related IP allegations.

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