Derek O'Sullivan KC

Clive Wells is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Clive, who practices law in London, United Kingdom, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Clive is held by other top lawyers in the same geographic and legal practice area.

Claibourne S. Harrison is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Claibourne S., who practices law in London, United Kingdom, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Claibourne S. is held by other top lawyers in the same geographic and legal practice area.

Patrick Doris is a partner in Gibson Dunn’s Dispute Resolution Group in London, where he specialises in global white-collar investigations, commercial litigation and complex compliance advisory matters. Mr. Doris’ practice covers a wide range of disputes, including white-collar crime, internal and regulatory investigations, transnational litigation, class actions, contentious antitrust matters and administrative law challenges against governmental decision-making. Mr. Doris handle...

Professor Maxi Scherer is a special counsel in the firm's Litigation/Controversy Department, and a member of the International Arbitration Practice Group. She has extensive experience with arbitral practice and procedure in civil and common law systems both in commercial and investment arbitration. Regularly ranked by Who’s Who Legal, The Legal 500 etc. as a leading arbitration practitioner, she has been identified amongst the top 20 “Global Elite Thought Leaders” and descri...

Andrew M. Good is a top attorney recognized by Best Lawyers in the practice area(s) of Government Practice. Andrew M., who practices law in London, United Kingdom, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew M. is held by other top lawyers in the same geographic and legal practice area.

Richard Obank is a partner and the practice group leader of the Firm's Bankruptcy & Corporate Restructuring Practice Group in the U.K. Richard practices in the area of corporate restructuring with particular experience acting for boards of directors in financially distressed situations. He advises regularly on distressed M&A transactions, debt and capital restructuring and work out situations, often involving significant cross-border issues, where the objective is to ensure the best o...

Mitasha Chandok is an experienced corporate associate in the London office of Gibson, Dunn & Crutcher. She is a member of the firm’s Oil and Gas, Energy and Infrastructure, Power and Renewables, Mergers and Acquisitions, and Private Equity practice groups and the Environmental, Social and Governance (ESG) practice. Mitasha’s experience includes mergers and acquisitions, joint ventures, project development and financing, and corporate advisory work. She routinely advises client...

Franz Schwarz focuses on complex multi-jurisdictional disputes. He has extensive experience with arbitral practice, procedure and advocacy both in civil and common law systems. Mr. Schwarz has been involved in more than 250 arbitrations as counsel and arbitrator, both ad-hoc and before all major arbitral institutions (including ICC, LCIA, Vienna and Stockholm), at multiple seats and governed by a broad variety of substantive and procedural laws. He has a particular focus on joint venture, M&a...

Rohan Massey is a top attorney recognized by Best Lawyers in the practice area(s) of Privacy and Data Protection Law. Rohan, who practices law in London, United Kingdom, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rohan is held by other top lawyers in the same geographic and legal practice area.

John Houghton, Chair of the London Restructuring & Bankruptcy Practice, advises creditors, sponsors, insolvent companies, directors and insolvency practitioners on virtually all areas of international restructurings, insolvency, and corporate rescues. He has a substantial experience of restructuring via schemes of arrangement and the new restructuring process. According to the Chambers UK 2020 Guide, John “is highly competent and skilled, and is able to guide a management team and d...