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Sub practice

M&A, JV and Shareholder litigation

Allen & Overy has an active practice to handle litigation resulting from corporate transactions and related shareholder disputes.

Our experts advise clients on potential and actual claims arising from both public and private M&A and joint ventures, supporting sellers and purchasers (both public and private) across a variety of sectors on issues including purchase price adjustments, deferred consideration, warranty claims and other breaches of agreement.

Litigators in A&O’s Asian, European, and North American offices regularly handle corporate disputes, working closely with our market leading corporate teams to ensure we build on the insights gained from being the most active transactional firm in the world.

We use the full range of dispute resolution methods (litigation, arbitration, expert determination, mediation and negotiation) and frequently work with accountants and other experts on the quantification of loss. 

Our experience includes advising:

  • A global engineering and construction company in a joint venture dispute with one of the largest international concession and construction groups relating to the construction of a hospital in Doha.
  • A global private equity firm, defending a EUR350 million claim over the amount of additional consideration payable following the acquisition and subsequent disposal of a major brewing business.
  • An investment bank in English High Court proceedings against two professional services firms, claiming damages for professional negligence and/or a contribution under the Civil Liability (Contribution) Act 1978 in connection with the valuation of an M&A transaction.

News and insights

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Publications: 12 May 2023

Bankruptcy petition vs exclusive jurisdiction clause - Who has the last word?

In this client bulletin, we report on a Hong Kong Court of Final Appeal judgment that clarifies the proper approach in deciding whether to dismiss or stay a creditor’s bankruptcy petition before Hong…

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News: 09 May 2023

Allen & Overy announces four senior counsel promotions in the United States

Allen & Overy (A&O) has promoted four of its lawyers to counsel in its U.S. offices. The promotions follow the announcement of four new partners in the United States.

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Publications: 29 March 2022

High Court holds no litigation privilege where expert used as “ballast in the correspondence”

Expert advice on the pricing of forward freight agreements, used to “make good any legitimate grievance” and “add ballast” in correspondence concerning alleged corporate mismanagement, was not covered…

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Publications: 06 July 2021

Damages for fraudulent misrepresentation in business assets sale

When considering direct losses suffered as a result of fraudulent misrepresentations made in the course of a business assets sale, a court should determine the difference between the market value of…

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