Leigh T. Hansson Photo

Leigh is a partner in the Global Regulatory Enforcement group based in London and Washington, D.C. and a member of the firm’s executive committee.


  • 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


  • Ranked in Chambers Global for USA International Trade: Export Controls & Economic Sanctions, 2022-2024
  • Ranked in Chambers USA for Nationwide International Trade: Export Controls & Economic Sanctions, 2022-2023
  • Ranked by Legal 500 USA for International Trade
  • Identified as one of Lloyd’s List’s Top 10 Maritime Lawyers 2023
  • 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

  • 8 August 2023 "Should companies fess up to potential sanctions breaches?" Lloyd's List
  • 3 August 2023 "Russia cheers higher oil and gas revenues as exports break through price cap" Upstream Online
  • 27 April 2023 "US Will Not Seek Secondary Sanctions on Russia: Reed Smith Analyst Says" Hart Energy
  • 10 February 2023 “1 Year On, Russia-Ukraine War Still Shadows Energy Deals” Law360
  • 1 February 2023 “Are sanctions working? Why Russia’s economy continues to grow” The Independent
  • 28 November 2022 “Europe’s price cap on Russian oil is no one-size-fits-all answer” The Times
  • 4 November 2022 “UK to ban ship insurance cover for Russian oil ahead of G7 price cap” Financial Times
  • 13 October 2022 'Absolute mess': EU Russia sanctions could drive wedge into P&I market Lloyd’s List
  • 22 September 2022 “EU Battles Russian Narrative Over Global Food Crisis” Wall Street Journal
  • 1 August 2022 “West eases efforts to restrict Russian oil trading as inflation and energy risks mount” Financial Times
  • 5 February 2022 “As ‘hawkish’ Liz Truss threatens Putin with sanctions, questions emerge about UK’s enforcement agency” Tech Register, City A.M.
  • 6 February 2022 “Brexit: UK flexes muscles as Truss threatens Putin with sanctions while EU dithers” Daily Express
  • 26 January 2022 “Shipping scrambles to manage Russia sanctions risk” Lloyd's List
  • 2 December 2021 “European Insurers Wary of Rising Threat of Sanctions Against Nord Stream 2 Pipeline” Insurance Journal
  • 1 December 2021 “Analysis: European insurers fear sanctions coming down Nord Stream 2 pipe” Reuters
  • 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 February 2023 Live interview with Trisha Goddard on Russia sanctions TalkTV
  • 23 August 2022 Interview with Aasmah Mir and Luke Jones to discuss Russian sanctions Times Radio Breakfast
  • 23 February 2022 Interviewed live on UK sanctions BBC News
  • 23 February 2022 Speaking live on UK sanctions HARDtalk Radio
  • 22 February 2022 Live interview with Matt Chorley to discuss Russian sanctions Times Radio
  • 22 February 2022 Live interview on the Iain Dale show to discuss Russian sanctions LBC
  • 22 February 2022 Live interview with Adrian Chiles discussing Russian sanctions BBC Radio 5live
  • 22 February 2022 Live interview discussing potential Russian sanctions Sky News
  • 16 February 2022 Live interview with Caroline Hepker, host of 'Daybreak Europe' to discuss potential Russian sanctions Sky News
  • 16 February 2022 Live interview with Times Radio breakfast show discussing potential Russian sanctions Times Radio
  • 16 February 2022 Speaking on Russia sanctions Talk Radio
  • 16 February 2022 Speaking on Russia sanctions Sky News
  • 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 Sky News 
  • 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