Stefanie Colella-Walsh is a Shareholder and member of Stark & Stark’s Litigation, Insurance Coverage & Liability, Intellectual Property, and Mass Torts Groups where she concentrates her practice in complex litigation with a focus in mass tort and pharmaceutical litigation.
She is currently involved in representing numerous plaintiffs in federal and state environmental and pharmaceutical mass tort cases, as well as state and federal class action litigation based upon commercial, employment, civil rights, investments/securities, and consumer fraud claims.
Stefanie frequently writes about timely legal and legislative developments impacting plaintiffs in mass tort and product liability actions for Stark & Stark’s Mass Tort Law Blog.
Stefanie has been appointed to leadership positions in national litigations. Some examples include:
- appointment to the plaintiff’s steering committee and bellwether committee for the California HIV/AIDS medication JCCP Gilead Tenofovir Cases, JCCP No. 5043;
- appointment to the plaintiff’s steering committee for the federal tainted medication MDL Valsartan Losartan and Irbesartan Products Liability Litigation, MDL No. 2875 (D.N.J.);
- appointment as a member of the bellwether committee for the federal anticoagulant medication MDL In re Xarelto (Rivaroxaban) Products Liability Litigation, MDL No. 2592 (E.D. La.); and
- appointment as co-lead trial counsel in the federal employment class action Sheinberg, et al v. Sorensen, et al, Case No. 2:2000-cv-06041 (D.N.J.).
- appointment as co-lead trial counsel in the federal life insurance class action Buck, et al v. American General Life Insurance Company, Case No.: 1:17-cv-13278 (D.N.J.).
Prior to joining Stark & Stark, Stefanie gained experience as a trial attorney handling all aspects of pretrial discovery and trial preparation concentrating on the defense of individuals being sued in relation to bodily injury claims generally stemming from motor vehicle accidents, home accidents, and slip and falls. She also has experience with insurance coverage litigation as well as civil and criminal municipal court matters. Stefanie also served as a Law Clerk to the Honorable Frederick J. Schuck, Criminal Division, Superior Court of New Jersey, and as a Legal Intern in the Camden County Prosecutor’s Office and the Gloucester County Prosecutor’s Office.
- New Jersey
- Pennsylvania
- New York
- U.S. District Court, District of New Jersey
- U.S. District Court, Eastern District of Pennsylvania
- U.S. District Court, Middle District of Pennsylvania
- J.D., Rutgers Law School, 2007
- B.A., Fairleigh Dickinson University, magna cum laude, 2003
Representative Experience
*Results may vary depending on your particular facts and legal circumstances*
- $30 million settlement. Ms. Colella-Walsh was co-lead plaintiffs’ trial counsel successfully representing numerous individuals in consolidated state and federal environmental contamination claims.
- $20 million settlement. Ms. Colella-Walsh was co-lead plaintiffs’ trial counsel successfully representing numerous individuals in consolidated state civil rights claims.
- $4.65 million settlement. Ms. Colella-Walsh was co-lead plaintiffs’ trial counsel successfully representing a nationwide class of individuals in life insurance claims.
- $1.375 million settlement. Ms. Colella-Walsh was co-lead plaintiff’s trial counsel successfully representing an individual in a wrongful life claim.
- $1.1 million settlement. Ms. Colella-Walsh was co-lead plaintiff’s trial counsel successfully representing an individual in a product liability claim.
- $20 million jury verdict. Ms. Colella-Walsh was a member of the national trial team for the first-ever trial involving TVT-Secur transvaginal mesh device.
- Ms. Colella-Walsh was a member of the national trial team involved the first trial in the country of a TVT-Secur transvaginal mesh device case against Ethicon/Johnson and Johnson. The Plaintiff, a Stark & Stark client, was awarded a $20 million jury verdict.* She was also Co-Chair of the 2019 New Jersey Association for Justice Meadowlands Seminar Mass Tort Program.
*Results may vary depending on your particular facts and legal circumstances*
- Presenter, The Role of Artificial Intelligence in Class Actions. AAJ Annual Convention. July 18, 2025.
- Speaker, Innovative Pharma Liability: The Gilead Life Science Decision. 2024 NJAJ Boardwalk Seminar. April 18, 2024.
- Presenter, Special Considerations – Class Actions. NJAJ Winter Seminar. February 22, 2024.
- Co-Author, The TDF Litigations – Deconstructing Product Liability Law. New Jersey Law Journal. December 12, 2023.
- Speaker, The Edna Mahan Sex Abuse Class Action Litigation. 2022 NJAJ Meadowlands Seminar. November 18, 2022.
- Quoted, As Bellwether Trials Resume, Mass Tort Lawsuits Soar Due to Litigation Funding. New Jersey Law Journal. July 14, 2022.
- Presenter, Lightening Round Questions and Answers. NJAJ Meadowlands Seminar. December 8, 2021.
- Presenter, Challenging Privilege Designations: What is the Law, What Should You Be Looking for in the Privilege Log, What Are You Entitled to. NJAJ Meadowlands Seminar. December 8, 2021.
- Co-Chair, Mass Torts. NJAJ 2019 Meadowlands Seminar. November 22, 2019.
- Co-Author, The Reports of the Death of Federal Multi-State Class Actions Have Been Greatly Exaggerated. HarrisMartin’s Mdl Mass Tort & Class Action Monitor. December 15, 2017.
- Interviewed, Xarelto Test Trials Feature New Technology, Selection Method. Bloomberg BNA Product Safety Liability Reporter. April 5, 2016.
- Co-Author, Monitoring Medical Surveillance Claims in New Jersey. New Jersey Law Journal. December 9, 2015.
- Co-author. Mass Torts and Class Actions in New Jersey. Environmental Law Handbook, Eight Edition. February 2014.
- Co-Author. Requirements for a Proper Privilege Log: The significance of these often overlooked rules. New Jersey Law Journal. December 12, 2011.
- Best Lawyers List issued by Woodward/White, Inc. (Methodology)
- 2024 – 2026; Personal Injury Litigation – Plaintiffs
- New Jersey Super Lawyers Rising Stars List issued by Thomson Reuters (Methodology)
- 2014 – 2021; Class Action/Mass Torts, Business Litigation, Intellectual Property Litigation
- New Leader of the Bar List issued by the New Jersey Law Journal (Methodology)
* No aspect of this advertisement has been approved by the Supreme Court of New Jersey.
Professional Organizations
- Mercer County Bar Association
- Camden County Bar Association
- New York State Bar Association
- American Bar Association
- New Jersey Association for Justice
- American Association for Justice
- Executive Counsel of the Class Action Section
- Court Appointed Special Advocates for Children – New Jersey (CASA), Member
- Ronald McDonald House, Volunteer
- Millhill Child & Family Development, Board of Trustees
- Women En Mass (WEM), Member
