Leigh T. Hansson Photo

Leigh is a partner in the Global Regulatory Enforcement group and a leading lawyer in our International Trade & National Security team.


  • Pennsylvania State University, The Dickinson School of Law, J.D., Recipient of the Comparative Law Award; Member of the Woolsack Honor Society; Student at the University of Oslo, Norway
  • Hollins University, B.A., History and Political Science

  • District of Columbia
  • Maryland

  • U.S. Court of Appeals - District of Columbia Circuit
  • U.S. Court of Appeals - Federal Circuit
  • U.S. Court of Appeals - Fourth Circuit
  • U.S. Court of Federal Claims
  • U.S. Court of Appeals - Maryland

  • American Bar Association
  • District of Columbia Bar Association
  • Maryland Bar Association
  • Society for International Affairs (SIA)
  • National Defense Industrial Association (NDIA)
  • International Women’s Forum UK

Awards & Recognition

  • Ranked in Chambers USA for Nationwide International Trade: Export Controls & Economic Sanctions, 2021
  • Ranked by Legal 500 USA for “International Trade”
  • Consistently featured as a “Star Lawyer” by independent research company Acritas 
  • Featured in Brummell Magazine's Inspirational Women List for 2018

Client Seminars

Various presentations to clients in France, the United Kingdom, the UAE, China, Denmark, Sweden, South America, Germany, the Netherlands, Turkey, and throughout the United States on a variety of topics, including: 

  • OFAC and EU Sanctions 
  • Export Controls 
  • Foreign Corrupt Practices Act 
  • Anti-Money Laundering 
  • Anti-boycott 
  • ATF Regulations 
  • Encryption 
  • Best Practices for Compliance Program Design and Implementation 
  • Restricted Party Screening in the United States and Europe 
  • Internal Investigations 
  • Financial Transaction Due Diligence 
  • Global Trade Compliance

Notable Quotes

  • 10 August 2021 “UK sanctions against Belarus create cross-border complexity, differences with United States -London lawyers” Thomson Reuters
  • 6 August 2021 “OFSI fine of TransferGo warns all under UK sanctions regime to expect more enforcement, say lawyers” Thomson Reuters 
  • 8 June 2021 “UK government's planned power to block listings is like 'lesser' sanctions, say lawyers” Thomson Reuters 
  • 1 June 2021 “European banks face new risks of breaching U.S. sanctions related to Iran, Cuba” Thomson Reuters
  • 31 May 2021 “The hardline cleric being groomed to become president – and the Supreme Leader of Iran” The Telegraph 
  • 3 May 2021 "A path back to a deal: US and Iran make serious headway on nuclear talks" The Independent
  • 30 April 2021 “UK sanctions regime carves out uneasy middle ground between US and EU” Global Investigations Review

Media Appearances

  • 25 May 2021 Interviewed on the IAEA deal and US-Iranian relations BBC World Service
  • 2 July 2020 Interviewed on the Hong Kong national security law on SkyNews 
  • 14 April 2020 "Has Trump become the law of the land - in the UK?" FDi Intelligence 
  • 25 June 2019 Live interview on US sanctions on Iran BBC World TV - GMT
  • 24 June 2019 Interviewed on US sanctions on Iran BBC World Service
  • 24 June 2019 Interviewed on US sanctions on Iran BBC Wake Up to Money 
  • 4 November 2018 “Can Iran survive sanctions? BBC News
  • 3 November 2018 “President Trump’s Game of Thrones-style tweet starts countdown to Iran sanctions” The Times
  • October - December 2018 "Managing and Resolving Export and Import Disputes" Corporate Disputes Magazine
  • 1 September 2017 "Back into the Game" Corporate Counsel 
  • 22 June 2017 “Policy Changes Could Slow Real Estate Investment in Cuba” Law360 
  • 3 August 2015 "The Chips Are Up. Chinese takeover of U.S. tech firms could prove beneficial to both countries, but will political concerns complicate things?" Beijing Review
  • 14 July 2015 "Reported Chinese offer for Micron faces far too many hurdles" Reuters