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Mayer Brown International LLP

Living Wage
Work 020 3130 3000
Fax 020 3130 3001

Ian McDonald

Work +44 20 3130 3856
Mayer Brown

Work Department



Ian McDonald is head of the Commercial Dispute Resolution practice in London, and is the former head of the restructuring, bankruptcy and insolvency practice in London. He acts for banks and funds, particularly in high value disputes relating to loan structures, structured finance and derivatives, many of which have cross-jurisdictional elements. He has advised on cases for financial institutions involving allegations of mis-selling, misconduct, misrepresentation, deceit, fraud, breach of duty, contractual interpretation and breach of transactional documentation, as well as on matters of enforcement, rectification and restitution. He is co-leader of the firm’s International Banking and Financial Litigation Action Group. Ian also acts for licensed insolvency practitioners, noteholders, lenders, creditors, directors and borrowers in contentious insolvency matters.


University of Cambridge, Jesus College

London: Dispute resolution

Banking litigation: investment and retail

Within: Leading individuals

Ian McDonald - Mayer Brown International LLP

Within: Banking litigation: investment and retail

Mayer Brown International LLP’s Ian McDonald >acts for banks and funds, particularly in high-value disputes relating to loan structures, structured finance and derivatives, many of which have cross-jurisdictional elements. McDonald 'has great legal judgement and commercial acumen, and is a real team player who at the same time knows how to lead a team'. Other highly regarded advisers include David Allen, who has particular experience in banking and insolvency litigation, including several high-profile insolvency proceedings; Alistair Graham, noted for regulatory and fraud investigations, white-collar work and international asset tracing; and Susan Rosser, who acts in disputes involving complex financial products, regulatory investigations and enforcement as well as professional discipline, corporate investigations (including fraud and corruption), and professional negligence claims. The practice represented UBS in long-running litigation in London against Kommunale Wasserwerke Leipzig, which provides fresh and wastewater services to the City of Leipzig and surrounding area; the litigation, which went to the Supreme Court, involved claims for approximately $320m arising from the enforcement of various structured finance transactions.

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Commercial litigation

Within: Commercial litigation

Mayer Brown International LLP's 'clients cannot speak highly enough of its efficiency, commitment and professionalism'. Stuart Pickford, who is 'an extremely bright, personable litigator whose calm demeanour and insightful analysis are an invaluable contribution', led advice to hotelier, Chen Mei Huan, in a long-running dispute concerning the ownership of shares in a BVI holding company, which (via a Macanese subsidiary) owns the Beijing Imperial Palace Hotel in Macau; the team's role included successfully advising on an appeal to the Privy Council, which set aside a decision of the Eastern Caribbean Supreme Court and ordered a retrial in the BVI. Ian McDonald heads the litigation and dispute resolution practice in London; Alistair Graham is 'one of the best commercial litigators around'; and Miles Robinson acts across a range of sectors, including energy, manufacturing, music, automotive, chemicals and outsourcing. Mark Stefanini and David Allen are also highly rated.

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