Commercial Litigation
At JHA, we have an established team of commercial litigation lawyers and KCs, which collaborate to deliver an effective case strategy, built around the clients’ commercial objectives. Our extensive experience and expertise are complemented by an agile approach. We are often able to complete a conflict check-in less than one hour, meaning we can start work at short notice for clients with time-sensitive needs.
Read MoreTax Disputes
JHA’s contentious tax practice brings together barristers, solicitors, chartered tax advisors and accountants. Together, we deliver a cohesive, considered and effective approach to advising and representing clients through all stages of a dispute.
Read MoreInsolvency Litigation
JHA brings its extensive contentious experience to matters of financial distress, including restructuring advice and insolvency litigation. Our experience extends to advising insolvency practitioners, creditors, debtors and committees on all aspects of restructuring and insolvency-related disputes.
Read MoreArbitration
Arbitration continues to grow in popularity as a means of resolving commercial disputes quickly, effectively and confidentially. In response to this increased demand, our arbitration capability has similarly grown and, using our depth of experience and understanding of the arbitration process, we continue to guide clients in a manner to fit their commercial objectives.
Read MoreInvestigation
An investigation can be a daunting prospect, with the requirements of resource and time alongside the potential threats to reputation and even license to operate. We provide unrivalled strategic advice and maintain long-standing working relationships with the SFO, FCA and other foreign regulators, to achieve the best possible client outcomes.
Read MoreCosts Litigation
The overseeing and recovery of costs is a core part of every dispute. Spiralling costs or the ability to obtain payment are major client concerns. At JHA, we make the process efficient and easy for our clients, which include in-house legal teams and other law firms.
Read MoreArt Law
JHA has deep and broad experience in advising clients across all sectors of the art market, including with respect to the sale and purchase of works of art, both privately and at auction, litigation, including disputes relating to the authenticity or ownership of works of art, the negotiation of loans using art as collateral, tax-related issues, such as VAT, and advice on insurance, risk management, intellectual property and regulatory issues. Our attorneys strive to offer practical advice based on their many decades of experience in the art market in both London and New York.
Read MoreInternational Protection and White Collar Criminal Defence
Our solicitors and barristers work closely with our investigators and forensic accountants to ensure that clients facing investigation and potential prosecution by the Serious Fraud Office, Financial Conduct Authority, HMRC and the Crown Prosecution Service for offences including high-value fraud, money laundering, bribery and corruption have access to a multi-disciplinary team from the outset. JHA brings a wealth of experience, insight and tactical awareness to provide advice and representation extending beyond the sphere of criminal defence to private prosecutions, Unexplained Wealth Orders, the annulment of sanctions and the deletion of INTERPOL Red Notices.
Read MoreRECENT ARTICLES

The End is Nigh for the Non-Dom Regime
Published in ThoughtLeaders4 Private Client Magazine, Helen McGhee expert analysis of the current state of non-dom tax regime and it's future.
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HMRC Makes Changes to COP9
On 14 June 2023, HMRC published a substantially rewritten Code of Practice 9 (“COP9”). Helen McGhee and Megan Durnford set out the key changes implemented as a result of this publication.
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Pandora Papers: HMRC issues nudge letters
The Pandora Papers leak of almost 12m documents back in 2021 purportedly exposed the secret accounts and dealings (including potential tax evasion/ avoidance and money laundering) of 35 world leaders (including the late HM Elizabeth II), as well as many politicians and billionaires. The data was obtained by the International Consortium of Investigative Journalists in Washington DC and led to one of the biggest ever global financial investigations.
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