Aaron Le Marquer

Partner Aaron leads the Policyholder Disputes team and specialises in representing policyholders in high-value and complex coverage disputes with insurers. Aaron acts for clients facing insured losses in diverse sectors including financial services, hospitality and retail, manufacturing, logistics, sports and entertainment. He is experienced in all commercial lines of business, including directors and officers, business interruption, product liability, environmental risks, property and casualty. Aaron spent eight years practising in the Asia Pacific region (Singapore, Hong Kong, Bangkok), and is particularly experienced at resolving international and cross-border claims, often via arbitration. Aaron’s cases were selected by The Lawyer as the only insurance cases to feature in the publication’s annual Top 20 Cases list in both 2022 and 2023, and as a Top 10 Appeal in 2024. In June 2023 he was named by The Times as Lawyer of the Week in recognition of the successful verdict in London International Exhibition Centre v RSA & Ors [2023] EWHC 1481 (Comm). Aaron has acted for: London’s ExCel centre as lead claimant in London International Exhibition Centre v RSA(the ‘ATP Test Case’), named as one of the Top 20 Cases of 2023 and Top 10 Appeals of 2024 in The Lawyer. A US drilling operator in relation to LCIA arbitration proceedings under a political risk policy issued by a consortium of Lloyd’s syndicates, arising from deprivation of assets in Russia following the commencement of hostilities with Ukraine The UK’s largest pub owner in Stonegate v MS Amlin, a £1.1bn claim that tested market-critical issues of aggregation, causation and treatment of government support, and selected as one of The Lawyer’s Top 20 Cases of 2022. An offshore property developer in relation to claims estimated at over £70m arising from alleged cladding defects. A Swiss private equity fund in relation to coverage of its claim under a buyer-side warranty and indemnity policy, following its failed acquisition of a UK trading company. An investment management company in relation to coverage of significant losses sustained as a result of a sophisticated cyber crime operation. · Stewarts Law LLP