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Honor Costello

Partner

hcostello@crowell.com
Phone: +1 212.803.4064
590 Madison Avenue
20th Floor
New York, NY 10022

Honor Costello is a partner in Crowell & Moring's New York office. Her practice focuses on litigating complex health care, antitrust, intellectual property, and commercial disputes, including class actions and multidistrict litigation (MDL) proceedings. She has represented insurers, reinsurers, managed care organizations, financial institutions, manufacturers, energy companies, and pharmaceutical companies in state and federal litigations.

 Representative matters include:

  • Defending health insurance companies in nationwide and statewide class actions asserting antitrust claims.
  • Representing major automobile manufacturer in nationwide class action alleging vehicle performance defects, breach of warranty, fraud, and consumer protection claims.
  • Representing a medical school in litigation relating to breach of a patent license agreement.
  • Defending health insurers in Employee Retirement Income Security Act (ERISA) litigation.
  • Representing a U.S. reinsurance company in litigations relating to underlying asbestos and environmental losses.
  • Representing a leading marketing and communications agency in a dispute with former employees regarding violation of nonsolicitation covenants and misappropriation of trade secrets.

Honor received her J.D. from Cornell Law School in 2011. While in law school, she served as a managing editor of the Cornell Journal of Law and Public Policy. She also served as a judicial intern to the Honorable Charles J. Siragusa, U.S. District Court for the Western District of New York. Honor graduated from Wellesley College with a B.A. in English.

Education

  • Wellesley College, B.A. (2003) cum laude
  • Cornell Law School, J.D. (2011)

Affiliations

Admitted to practice: New Jersey, New York, U.S. District Courts for the Southern District of New York, Eastern District of New York, District of New Jersey, and Eastern District of Michigan; U.S. Courts of Appeals for the Seventh and Fourth Circuits; the U.S. Supreme Court

View More

Civil Rights Groups Achieve Voting Rights Victory in Louisiana (Jun.16.2021)
Firm News / Announcement
"Critical Junctures: Depositions of Class Representatives and Challenging Expert Testimony at the Class Certification Stage," New York State Bar Association Annual Meeting 2019 – Torts, Insurance and Compensation Law and Trial Lawyers Sections (January 17, 2019). Panelists: Honor Costello and Jacqueline K. Seidel.
Speech/Presentation
Crowell & Moring Elects Eight New Partners and Promotes 21 Associates to Counsel (Jan.03.2019)
Firm News / Announcement
"Before You Settle That Class Action, Remember The Footlong," Bloomberg Law (October 25, 2018). Authors: Sarah Gilbert, and Honor Costello.
Publication
Crowell & Moring Elects Six New Partners and Promotes 19 Associates to Counsel (Jan.09.2017)
Firm News / Announcement
Legal Aid Society Honors Crowell & Moring Attorneys for Protecting the Rights of Low Income Workers (Nov.07.2016)
Firm News / Announcement

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Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

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