Hannah Cassidy
Image of Hannah Cassidy

Hannah Cassidy

Partner

Offices

Hong Kong SAR

Hannah leads the financial services regulatory practice in Hong Kong, with extensive experience advising on both advisory and contentious regulatory matters.

Hannah has substantial experience advising financial institutions, investment managers, fintech firms, listed companies and their senior individuals on complex advisory and regulatory matters, including senior management accountability, payments, cybersecurity, market abuse, anti-money laundering, fraud and scams, client assets and complex licensing issues.

Her expertise spans complex cross-border matters across Asia Pacific and other key global financial markets.

Hannah also has significant expertise in advising clients on the conduct of regulatory investigations, particularly in relation to culture and conduct.

Hannah and her team regularly lead discussions with regulators on behalf of the financial services industry in relation to regulatory reform initiatives. This includes working closely with leading industry bodies, including ASIFMA and AIMA.

Hannah chairs AIMA’s Hong Kong Regulatory Committee and regularly speaks on industry panels. Hannah is also a member of the HKEX’s Listing Review Committee.

Expertise

Industries

Experience

Representative matters

  • Multiple international and regional financial institutions on strategic advisory matters, including in relation to complex licensing issues, product offering, culture and conduct, payments, money lending, and corporate restructuring.
  • Several global investment banks on anti-money laundering and counter-financing terrorism (AML/CFT) compliance.
  • Multiple banks and fintech firms in relation to virtual-asset related activity.
  • A large Korean financial institution in relation to issues arising from an investment into a Hong Kong-managed hedge fund.
  • A Hong Kong listed company and its subsidiary on an independent investigation into alleged misconduct relating to certain investments.
  • A European investment bank in relation to an investigation into unauthorised trading. 

Recognition

Hannah is incredibly knowledgeable, professional and very hands-on. She is willing to go the extra mile to cater to our needs. We can rely on her for succinct advice.
Financial Services for both Contentious Regulatory and Non-contentious Regulatory, Chambers Greater China Region, 2025
Hannah Cassidy is very responsible and responsive. She is experienced at looking at financial services regulations, especially those related to banks. It's a good set of expertise that we can draw on.
Financial Services for both Contentious Regulatory and Non-contentious Regulatory, Chambers Greater China Region, 2025

Qualifications

Admissions

Admitted as solicitor, Hong Kong, 2017

Admitted as solicitor, England and Wales, 2008

Academic

Legal Practice Course, BPP Law School, 2006

GDL Law Conversion Course, BPP Law School, 2005

BA (Hons) in French, University College London, 2004

Lettres Modernes (Licence en deuxième année), L'université Paul-Valéry-Montpellier, 2003

Disclaimer
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.