Seth Cumming is a barrister and partner at JHA, specialising in private wealth disputes and international commercial litigation and arbitration. He has over fifteen years' experience as counsel, acting in the most complex and high-value disputes for private clients, trustees and institutions across multiple jurisdictions.
Seth has extensive experience as an advocate before the English Courts and before arbitral tribunals constituted under the ICSID, UNCITRAL, ICC and LCIA rules. His practice is distinguished by effective strategy and formidable advocacy in disputes that are usually complex, multi-jurisdictional and of significant commercial consequence. He is sought out by clients navigating sensitive disputes where the outcome bears materially on wealth and reputation. He has significant experience of disputes and litigation in Cyprus, Jersey, Guernsey, India, Italy, Luxembourg, Monaco, Russia, Singapore, and the USA.
Seth is described in Chambers High Net Worth 2026 for Private Wealth Disputes, as "a deep thinker, a clear communicator," with "a very balanced, measured approach," and is credited with "outstanding levels of commitment, sophistication and commercial awareness."
Barrister, England and Wales, 2010
University College London – LLM (Merit)
London School of Economics and Political Science – MSc (Merit), Commonwealth Scholar
City University Law School – Bar Professional Training Course (Outstanding)
BPP University – LLB (First Class Honours)
Rhodes University, South Africa – BSc (Double First)
