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Dayme Sanchez has a wide range of experience litigating cases from the pleading stage to trial in state and federal courts and in international arbitrations. She has prepared fact and expert witnesses, direct and cross-examinations, opening and closing presentations, motions and complaints, propounded discovery requests and interrogatories, taken and defended depositions, worked with experts, and handled post-judgment enforcement proceedings. She has successfully argued motions to dismiss, for summary judgment, to set aside default judgment, in limine, quash subpoenas, and numerous discovery-related motions.

Dayme has defended nationwide class actions and complex commercial cases involving antitrust, false advertising, unfair business practices, breach of warranty, fraud, breach of contract, copyright, trademark, breach of fiduciary duties, the Fair Credit Reporting Act (FCRA), and labor and employment. She regularly counsels clients during prelitigation stages and settlement negotiations and has worked with clients in many industries, including technology, finance, energy, consumer goods, health care, and banking. Recent representations include defending class actions alleging false advertising concerning headphones, snack foods, and sanitizers and defending a global software corporation in a trade secrets and antitrust violations case.

Dayme also has extensive experience handling international disputes. She has represented clients in arbitrations before the ICC, ICDR, and AAA. She has worked in proceedings applying foreign laws, conducted in Spanish, and in every aspect of arbitration, from drafting statements of claim and defense through the hearing, post-hearing submissions, and enforcing awards. Recent representations include defending an energy firm in a fraud and antitrust dispute involving Venezuela's state-owned oil company and defending a coal mining company in a shareholder dispute involving a Colombian railway.


  • Sutter Health wins complete defense verdict in landmark antitrust class actionJones Day won a complete defense jury verdict for Sutter Health in a landmark antitrust class action seeking $1.2 billion in treble damages.
  • SAP wins summary judgment on Teradata trade secret and antitrust claimsJones Day successfully defended SAP, one of the world's leading producers of software for the management of business processes, against trade secret and antitrust claims in a lawsuit filed in the Northern District of California.
  • GOJO defeats class actions alleging false advertising relating to Purell® hand sanitizersJones Day successfully defended GOJO Industries, Inc., the maker of Purell® hand sanitizer products, in multiple putative nationwide class actions.