Elizabeth Callahan is an associate in the firm’s litigation department, where her practice focuses on complex commercial litigation. Ms. Callahan has represented clients in the pharmaceutical, insurance, and financial industries in both state and federal courts and in arbitration.

Representative Matters

Complex Commercial Cases
Representation of financial guaranty insurers in breach of contract and fraud actions related to residential mortgage-backed securities.

Representation of financial guaranty insurer in breach of contract action related to military housing project.

Patent Litigation

Representation of a major pharmaceutical and medical device company against claims of patent infringement.

False Advertising

Defended consumer-products manufacturer against false advertising claims in putative class actions.

Pro Bono
Representation of multiple clients seeking relief for children with special needs, including the successful representation of students seeking special education services from the New York City Department of Education and the representation of a putative class of children seeking relief for alleged violations of the Individuals with Disabilities Education Act.


  • U.S. District Court, Southern and Eastern Districts of New York
  • New York