

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.
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News & insights

Publications: 12 MAY 2020
While the health crisis linked to Covid-19 coronavirus continues, many companies are getting prepared to resume their activity as of May 11, 2020. Directors and corporate officers are wondering about…
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Publications: 29 APRIL 2020
Related Party Transactions: What's new?
On 9 April 2020, the draft Belgian legislative proposal implementing the Shareholders’ Rights Directive II (SRDII) was adopted in plenary session and should be published shortly.
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Publications: 03 APRIL 2020
Covid-19 coronavirus: U.S. regulatory enforcement and civil litigation over ESG disclosures update
Why the Covid-19 coronavirus crisis might accelerate U.S. regulatory enforcement and civil litigation over ESG disclosures
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Publications: 03 APRIL 2020
Covid-19 coronavirus: how the APAC courts and arbitral institutions have adapted to the challenge
As Covid-19 coronavirus continues to spread across the globe, the various forums for dispute resolution worldwide find themselves presented with novel challenges, in particular relating to issues…
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Compact contract - a brief look at topical issues in contract law
A blog where experts from Allen & Overy analyse the latest contract law themes and developments, and what they mean for your business.
Recognition
The obvious key strengths are the outstanding intra-firm co-operation among several offices, quality of personnel and the seamless support.
Chambers Global 2019, Corporate/M&A