Allen & Overy LLP

Dispute Resolution Department

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What the team is known for Most active in financial and contractual disputes on behalf of major international and domestic banks and investment funds. Also commonly instructed to advise on investment arbitration disputes in the renewable energy sector. Other work includes corporate and commercial litigation arising from shareholder disputes and M&A transactions. Well equipped to assist clients with contentious insolvency situations and enforcement of securities.

Strengths Clients underline team members' "understanding of clients' expectations" and their "very proactive" approach.

Other interviewees note the firm's network as a key draw, stating: "The Madrid team has very good colleagues in other jurisdictions and they complement each other in a perfect way."

Work highlights Assisted Credit Suisse with a dispute concerning the acceleration of different financial instruments, as a consequence of criminal proceedings raised against a debtor of the bank based in Luxembourg.

Notable practitioners

Interviewees describe department head Antonio Vazquez-Guillén as "quick-thinking and very thorough in his analysis.""He is not only our lawyer but also part of our team," appreciates another source. He represents a range of clients in both litigation and arbitration procedures and is notably active in Energy Charter Treaty disputes.

Javier Mendieta Grande represents a range of domestic and international clients involved in contractual and corporate disputes. His caseload comprises real estate, antitrust and insolvency-related litigation.

Financial litigation expert José Luis Terrón also advises clients on international arbitration and disputes relating to M&A transactions. "He's very focused on satisfying the client: he wants to know us and how we work and this is what really helps," one impressed source notes.