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. Increasingly active in large banking litigation as well as high-profile criminal proceedings.

Strengths Clients commend the firm for its "impeccable customer service" and note that the lawyers are "clearly able to draw on significant market experience."

Interviewees value the practice's experience in cross-border mandates and further underline the team's "rigour, speed and prudence."

Work highlights Advised Innogy Spain and Innogy on investment arbitration proceedings against the Kingdom of Spain, following the abolition of the renewable energy regulatory regime.

Notable practitioners

Clients highlight Antonio Vazquez-Guillén as "a great strategic planner," with one source enthusing: "He is technically impeccable." He is most active in investor-state arbitration arising from the renewable energy sector, and further assists with banking litigation and related criminal proceedings.

Javier Mendieta Grande is well-versed in shareholder disputes and further acts as counsel in ICC arbitration. Clients say: "He tackles complex issues brilliantly."

José Luis Terrón assists with contractual and banking litigation, as well as international commercial arbitration. Interviewees dub him "a tough litigator."