A.J. De Bartolomeo

ajd@classlawgroup.com (510) 350-9711 vCard

A.J. De Bartolomeo has nearly thirty years of experience prosecuting class actions and complex matters in courts throughout the country. She has extensive expertise litigating mass personal injury matters involving defective drugs and medical devices. A.J. currently serves in court-appointed leadership positions in several MDL mass tort actions, including serving on the Plaintiffs’ Steering Committees in the In re: Yaz and Yasmin Birth Control Litigation, In re: Actos Products Liability Litigation and In re: Pradaxa Products Liability Litigation. She serves on the Law and Briefing committees and has been involved with Daubert briefings in a number of cases. A.J. previously served on the Plaintiff’s Steering Committee in the In re Transvaginal Mesh Litigation.

Committed to advancing opportunities for women lawyers, Ms. De Bartolomeo is the former Chair of the Women’s Trial Lawyer Caucus of the American Association of Justice, where she oversaw the caucus’s work in leadership training, student scholarship, membership and political outreach, and other pro-civil justice functions. She is an active member of the American Bar Association Sections on Tort Trial and Insurance Practice, the American Bankruptcy Institute and Consumer Attorneys of California. Ms. De Bartolomeo has been named among the highest class of attorneys for professional ethics and legal skills with an AV-Preeminent rating by Martindale Hubbell, and was recognized by her peers as a Northern California Super Lawyer every year since 2013.

Ms. De Bartolomeo frequently speaks before industry organizations on developments in consumer class actions, mass tort litigation, Daubert challenges, Rule 37 and Inherent Power sanctions, and the settlement approval process.

She is Of Counsel to Gibbs Law Group and a partner with Milberg Tadler Phillips Grossman LLP.

Litigation Highlights

  • In re: Yaz & Yasmin Birth Control Litigation

    A.J. serves on the Plaintiffs’ Steering Committee in this coordinated litigation on behalf of women throughout the country who suffered serious side effects after taking Yaz, Yasmin and Ocella birth control. She serves as co-chair of the Law and Briefing committee and substantially contributed to the Daubert briefing that defeated all of the defendants’ 16 challenges to plaintiffs’ expert testimony.

  • In re: Actos Products Liability Litigation

    A.J. serves on the Plaintiffs’ Steering Committee in this coordinated litigation on behalf of individuals who were diagnosed with bladder cancer after taking the oral anti-diabetic drug Actos. She serves as a member of the Law and Briefing committee in this litigation.

  • In re: Pradaxa Products Liability Litigation

    A.J. serves on the Plaintiffs’ Steering Committee in this coordinated litigation on behalf of individuals who suffered internal hemorrhaging and other serious complications after taking the anticoagulant drug Pradaxa. She serves on the Daubert briefing committee in this case.

  • In re Motors Liquidation Company, et al., f/k/a General Motors Corp. (Bankruptcy Litigation)

    A.J. served as Lead Counsel for unsecured creditors in two class action cases in the General Motors bankruptcy proceedings (court-certified classes in In Re Piston Slap Class Litigation and In Re Dex-Cool Class Litigation). The cases were settled in Bankruptcy Court for nearly $12 million.

  • In re American Express Advisors Securities Litigation

    Served as second chair and achieved settlement of $100 million on behalf of individuals who bought financial plans and invested mutual funds from American Express Financial advisors.

  • CalSTRS v. Qwest Communications, et al

    Served as Co-Lead Counsel in the representation of California State Teachers’ Retirement System in opt-out securities fraud action against Qwest Communications, Inc. and certain of its officers and directors, as well as its outside auditor Arthur Andersen. Settled for $45 million.

  • Telstar v. MCI, Inc

    Served as lead counsel achieving settlement of more than $2.8 million in cash on behalf of class of commercial subscribers alleging FCA violations for unfair billing practices.

  • In re MCI Non-Subscriber Rates Litigation

    Served as second chair and achieved $90 million cash settlement on behalf of MCI subscribers who were charged MCI’s non-subscriber or “casual caller” rates and surcharges instead of the lower rates which MCI advertised and subscribers expected to be charged.

  • Lehman v. Blue Shield

    A.J. served as lead counsel and achieved a settlement for more than $6.5 million in cash on behalf of class of subscribers overpaying insurance premiums.

Show Full Bio

Super Lawyers, 2013-2017
Top 50 Women Lawyers in Northern California, 2017

Martindale Hubbell AV Preeminent Rating

Above and Beyond Award American Association for Justice, 2018

Distinguished Service Award American Association for Justice, 2016

  • J.D., University of California, Hastings College of Law, 1988
  • B.A., Fairfield University, 1982
  • University of London, London School of Economics (General Course Degree, 1981)
  • American Association for Justice- Member, Board of Governors; Chair, State Trial Lawyers Association (TLA) Outreach Committee; Former Chair, Women’s Trial Lawyer’s Caucus; Member, Class Action Litigation Group.
  • Consumer Attorneys of California
  • American Bar Association- Tort Trial and Insurance Practice Section
  • American Bankruptcy Institute
  • Association of Business Trial Lawyers

Presenter, "Best Practices for Communications with Class Representatives and Putative Class Members”

Class Action Mastery Conference, HB Litigation

May 2018

Panel contributor, "Theories for Presenting Class Actions in the Opioid Litigation”

Opioid Conference, HB Litigation

March 2018

Presenter, "Current Class Action Landscape in Opioids Multidistrict Litigation"

HB Litigation: Opioid Crisis- Claims, Damages & Science

January 2018

Presenter, "Class Treatment: Can These Claims be Resolved by a Class Action?"

American Association for Justice: Opioid Litigation Seminar

September 2017

Presenter and Moderator, "Are you going to eat that? Issues, hurdles and opportunities in food and supplement litigation"

ABA Tort and Insurance Practice Section (TIPS), Toxic Torts and Environmental Law Committee Spring CLE Meeting

April 2017

Presenter, “Pharmaceutical Litigation: Business Implications for Unions and Their Members”

National Labor and Management Conference

February 2017

Presenter, "Strategies for Dealing with Objectors to Class Action Settlements"

Consumer Attorneys of California Class Action Seminar

February 2017

Presenter, "MDL Steering Committee Appointments; Structure and Leadership; What’s the Plan B?”

Louisiana Bar Association: 16th Annual Class Action and Complex Litigation Symposium

November 2016

Presenter, "Best Practices for Class Action Notice and Settlement Administration”

Harris Martin: Class Actions

July 2016

Presenter, "Plastic in the Pelvis: Essure and Mesh Litigation"

Harris Martin Women's Health Litigation Conference

June 2016

Presenter, "Combatting the Latest Defense Tactics in Mass Torts/ Plaintiff Practice (Spoliation and Rule 37)"

Consumer Attorneys of California Sonoma Travel Seminar

April 2016

Presenter, "Mass Tort Claims, Daubert Challenges and Causation Issues"

25th Annual Spring CLE Meeting for the American Bar Association Tort Trial and Insurance Practice Section (TIPS) Toxic Torts and Environmental Law Committee

April 2016

Moderator, Women's Trial Lawyers Caucus Leadership Summit

American Association for Justice Winter Convention

February 2016

I found comfort in your abilities every step of the way due to the professionalism and explicit dedication to my case as if it were the only one.

- Christian B.

Slice 1 BLF 2017