A&O Shearman
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A&O Shearman acts for policyholders in coverage disputes, where the team has a niche in capital markets, finance, tax and regulatory, corporate reorganisations, and structured financial products. Mahmood Lone has experience in advising financial institutions on both domestic and cross-border litigation. Russell Butland acts on matters relating to property damage and business interruption, D&O, comprehensive crime, professional indemnity, and trade credit. Acting for insurers, reinsurers, and policyholders is Charlie Weston-Simons. He has worked on many complex commercial insurance disputes, some of which include construction, marine cargo, and various private M&A transactions.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Russell Butland stands out for his excellence.'
Key clients
- Ark Insurance Group Limited
- The Joint Administrators of Greensill Capital (UK) Limited (GCUK)
Work highlights
Advising Ark Insurance Group Limited on a dispute regarding the scope of Ark’s authority to write certain latent defects insurance policies for an insurer.


