Stephen A. Aschettino Photo

Stephen is a partner in the firm’s U.S. Corporate Group and a member of the global FinTech practice. He is an accomplished counselor and trial attorney with more than 20 years of experience handling a wide variety of complex business law and high-stakes litigation matters. Stephen’s practice includes a particular focus on legal, business and regulatory issues impacting payment systems and the evolving payments technology industry.

A payments-industry veteran and former general counsel, Stephen is uniquely equipped to counsel financial institutions, technology companies, payment processors, merchant acquirers, ISO’s/MSP’s/ISV’s, cash advance providers, ATM companies, FinTech start-ups and other players in the payments space. He also works with some of the largest retailers, manufacturers, media companies, sports franchises, consumer brands and agencies to develop and implement payments technology solutions. Stephen assists clients with matters involving electronic payments, mobile wallets, prepaid cards, digital currency, money transmission and related licensing issues. He has extensive experience with new product development, negotiating key sponsorship and processing agreements, structuring intercompany transactions, performing regulatory due diligence and resolving contractual disputes. Stephen regularly counsels on federal and state payments, financial and consumer regulatory issues, data privacy and security and compliance with Payment Card Industry Data Security Standards, card-network and NACHA rules. He frequently serves as outside general counsel to PayTech companies.


  • American University, Washington College of Law, 1991, J.D.
  • Cornell University, 1988, B.S.

  • New York

  • U.S. Court of Appeals - Second Circuit
  • U.S. District Court - Southern District of New York
  • U.S. District Court - Eastern District of New York

  • Hispanic National Bar Association
  • Electronic Transactions Association
  • Global Legal Blockchain Consortium
  • Turnaround Management Association
  • American Bar Association
  • New York State Bar Association

Notable Quotes

  • 10 September 2020 “OCC's Potential Boon For Payment Industry Faces Headwinds” Law360 
  • 19 March 2020 “Fintech Could See Adoption Bump After Outbreak Eases” Law360
  • 26 February 2020 “Fintech’s 2020 M&A Boom Shifts to Consumer-Facing Targets” Law360
  • 20 November 2019 “Dueling Fintech Regulatory Initiatives May Work Best Together” Law360
  • 17 September 2018 “Industry Will Not Face Censure Over Non-Binding Guidance, Insist U.S. Regulators” Payments Compliance
  • 9 March 2018 “Lessons Learned:  Venmo Reaches Settlement with Federal U.S. Regulator” Payments Compliance
  • 27 October 2017 “U.S. Firms Cautioned Over Regulatory Sandbox Hype” Payments Compliance
  • 26 October 2017 “U.S. Arbitration Rule Struck Down By Senate” Payments Compliance
  • 29 September 2017 “Square Wants To Be A Bank, And Real Banks are Pissed” Buzzfeed
  • 21 July 2017 “The Morning Risk Report: Compliance Requirements Loom for Fintech Firms” The Wall Street Journal
  • 4 November 2016 “Merchants Are Finally Warming Up to Surcharging” Payments Source
  • 13 October 2016 “Little-Discussed Aspect of CFPB Ruling Could Be Boon to Lawyers” New York Law Journal
  • 14 December 2015 “On Deck: Predictions for 2016 and Beyond” SC Media
  • April 2014 “Merchants in Legal Hot Water After EMV Shift” ISO & Agent Weekly
  • 14 March 2013 "Lawyers Work to Safeguard ISOs" ISO & Agent Weekly
  • 29 March 2011 “Time Has Come for Honesty in Negotiating the Split” ISO & Agent Weekly
  • 28 July 2010 “Portability Rights Taking on Greater Importance” ISO & Agent Weekly
  • 26 March 2010 “The Do’s And Don'ts of Digital Documents” Payment Source
  • 14 October 2008 “Managing Legal Expenses” Investor’s Business Daily