Mairi is a highly regarded junior with a broad commercial chancery practice, specialising in commercial disputes, insolvency and civil fraud. She is ranked in Chambers and Partners for Chancery: Commercial (Band 4) and Restructuring/Insolvency (Band 5), where she is described as “fiercely bright”, “sharp and robust” and delivering “client service and a quality of work far in excess of her year of call”.
She appears regularly in the High Court, both as sole counsel and as part of larger teams, and has experience in the Court of Appeal and in LCIA and ad hoc arbitrations. Her advocacy is noted as “impressive”, and she is frequently instructed in complex, high-value disputes, often with an international element.
Highlights include:
- Acting (as part of a counsel team) for a state-owned entity in a multi-million Euro construction arbitration.
- Acting (led by Stephen Davies KC) for defendant directors in a complex breach of duty claim arising from an employee benefit trust scheme (including successfully applying for the removal of the company liquidator: Morris v Registrar of Companies [2025] EWHC 1733 (Ch)).
- Acting (as sole counsel) for companies defending public interest winding-up petitions presented by the Secretary of State involving allegations of fraud and forgery.
- Successfully representing (led by Simon Johnson) claimants in an arbitration worth £14 million against negligent solicitors and their insurers, arising from a failed property investment scheme.
- Successfully representing (led by Niall McCulloch) the claimant liquidators of a bridge lending company in the 5-week trial of their claim in fraudulent trading and breach of duty against the company’s former directors. Judgment was obtained on 13 December 2023 (Bouchier v Booth [2023] EWHC 3195 (Ch)) resulting in a judgment against the directors of approximately £30 million.
Mairi has been appointed by the Attorney General to the London C Panel of Junior Counsel to the Crown, commencing on 1 September 2024 for 5 years.
