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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 'team is extremely dedicated, efficient and very pleasant to work with'. The practice acts for investment banks, investment funds, asset managers, issuers of listed debt securities, and corporate trustees in high-value, high-profile disputes involving the wholesale financial markets, which usually have cross-jurisdictional elements. The practice is particularly known for disputes surrounding derivatives and structured products, commodities and financial crime. It represented UBS in litigation in London against German water services provider, Kommunale Wasserwerke Leipzig, that arose from the enforcement of structured finance transactions. Ian McDonald leads the practice, of which Alistair Graham , Susan Rosser and Mark Stefanini are also key members. The counsels to note are Ruth Malone, Dan Hart and recently promoted Chris Roberts. White-collar partners Sam Eastwood and Jason Hungerford were hired from Norton Rose Fulbright, while David Allen retired from the practice.

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Commercial litigation

Within: Commercial litigation

Mayer Brown International LLP's 'team is strong and has good cross border capability'. It acts for clients in commercial litigation across a number of industries, such as finance, manufacturing, telecoms, consumer products, energy and media. Ian McDonald heads the litigation and dispute resolution practice in London; pensions litigation practice head Stuart Pickford is particularly focused on commercial trusts, with his practice also including shareholder disputes and warranty claims; and Miles Robinson is recommended for substantial contractual and commercial litigation court claims, often with a cross-border element. Also key to the practice are Mark Stefanini, Alistair Graham and counsel Dan Hart . Well known white-collar partner Sam Eastwood  and Jason Hungerford were hired from Norton Rose Fulbright.

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