Marcos Sasso concentrates in complex commercial litigation, with a particular emphasis on representing financial institutions and financial services companies, including national banks and credit card issuers in all aspects of both individual and class actions. In particular, Mr. Sasso has extensive knowledge of state and federal laws relating to credit cards, credit reporting, fair debt collection and other consumer protection statutes. He has extensive litigation experience before the California trial courts and Courts of Appeal and the Ninth Circuit Court of Appeals and California district courts. Mr. Sasso has also defended clients in appeals before the California and Idaho Supreme Courts and the Fourth and Eleventh Circuit Courts of Appeal.


Some of Mr. Sasso’s recent representations include:
  • Miceli v. Staples, Inc., et al. – Successfully represented Citibank, N.A. and Staples, Inc. on appeal before the California Court of Appeal in putative class action challenging enforceability of Citibank’s arbitration agreement.
  • Edwards et al v. Macy's, Inc. et al. - Represented Department Stores National Bank and Macy's Inc. in defeating putative class claims as preempted by the National Bank Act and OCC regulations.
  • McGill v. Citibank, N.A. – Successfully represented Citibank, N.A. in defeating efforts in a consumer class action to challenge arbitration agreements for public injunctive relief under California’s Unfair Competition Law and Consumer Legal Remedies Act. An appeal is pending before the California Supreme Court.
  • Deniz v. Chase – Defeated class certification on behalf of JP Morgan Chase in action for violations of various California consumer-protection laws in connection with the purchase of Retail Installment Sales Contracts from California automobile dealers.
  • Represented Citibank, American Express and Synchrony, among others, in multiple class and individual actions, including arbitrations, in connection with allegations of improper use of auto dialers under the TCPA.


  • "Ninth Circuit Rules Plaintiff Has Article III Standing In Spokeo, Leave More Questions Unanswered," Stroock Special Bulletin, August 15, 2017
  • "Affirmed - Defaulted Debt Buyer Not Subject to FDCPA," Stroock Special Bulletin, June 13, 2017
  • “Case Will Test Standing of Settlement Objectors,” The Daily Journal, April 17, 2017
  • "Important National Bank Act Preemption Decision," Stroock Special Bulletin, March 10, 2016
  • "California Supreme Court Issues Important Federal Arbitration Act Preemption Ruling," Stroock Special Bulletin, August 4, 2015
  • "California Court Of Appeal Issues Important Federal Arbitration Act Preemption Ruling," Stroock Special Bulletin, December 22, 2014
  • "California Supreme Court Issues Important Federal Arbitration Act Preemption Ruling," Stroock Special Bulletin, June 25, 2014



U.S. District Court, Central District of California; U.S. District Court, Eastern District of California; U.S. District Court, Northern District of California; U.S. District Court, Southern District of California; U.S. Court of Appeals, Ninth Circuit


J.D., University of California, Los Angeles, School of Law, 2003

B.A., Loyola Marymount University, 2000