City of London-based international disputes boutique Keidan Harrison has expanded its partnership with the appointment of Rachel Cropper-Mawer, further strengthening the firm’s offering.
Cropper-Mawer brings more than 20 years’ experience to the firm. She left Ogier in May after 18 months, where she was global head of investigations, and previously worked as a partner at Clyde & Co for four years as co-head of investigations. That was her second stint at Clydes, having previously worked there for 10 years from 2001, including as a partner, before moving in-house.
In addition, she spent four years as a partner at DAC Beachcroft and has held in-house leadership roles at BP and Willis Towers Watson, specialising in compliance, risk and ethics, and worked at the Financial Conduct Authority.
Her practice covers international dispute resolution, investigations, asset recovery and regulatory enforcement across sectors including oil and gas, commodities, finance, tech, manufacturing and shareholder disputes.
Cropper-Mawer’s appointment reflects the boutique’s continued investment in top-tier talent and its strategy to build its disputes practice by recruiting senior lawyers with specialist expertise, international experience and an entrepreneurial outlook.
Marc Keidan, senior partner, said: “Rachel is an outstanding lawyer with a powerful combination of disputes, investigations and regulatory expertise, together with first-hand experience of the commercial and governance challenges faced by businesses operating internationally.”
Noting the firm was targeting future expansion, he added: “Her appointment reflects our commitment to attracting exceptional talent and further strengthens our ability to advise clients on their most complex and business-critical matters.”
Luke Harrison, managing partner – who is one of the co-authors of Global Legal Post’s Law Over Borders title on restructuring and insolvency – said: “Rachel is exactly the calibre of partner the firm hopes to attract with our innovative new LLP structure.”
The former co-chair of LIDW added: “We want to attract entrepreneurial partners with sharp technical skills who want to build their practices with us and be rewarded properly for the work they do.”
Cropper-Mawer said she was attracted to the firm thanks to its “strong reputation for handling complex and high-stakes matters”, adding: “I look forward to working with the team to help clients navigate their most challenging disputes and investigations.”
Her arrival comes as Shristi Jain, a former managing associate at Keidan Harrison, was promoted to of counsel at Humphries Kerstetter after joining it in 2025.
Joanna Pearson, Humphries Kerstetter’s managing partner, said: “Since joining, she has made a significant impact through the quality of her work, her international perspective and the relationships she has developed across the arbitration community.”
Pearson added: “We are very pleased to have Srishti as part of the firm’s future and look forward to seeing her continue to develop her practice with us.”
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