Expertise Disputes and Investigations
December 8, 2025

Lexology Index Recognizes A&M in the 2026 Arbitration Guide

Lexology Index recognizes 15 leading experts from A&M’s Disputes and Investigations practice in the 2026 Arbitration Guide.

Our experts are familiar with all major arbitration rules and have testified under the rules of most of the arbitral institutions. Our global teams also work across all the leading international centers. Our experts have experience acting in both commercial and investment treaty arbitrations, for both claimants and respondents and, occasionally, as tribunal-appointed or single-joint experts. Our typical expert testimony relates to the assessment of loss and damage; valuation of businesses, entities, and ventures; shareholder disputes; forensic accounting analysis; and economic and econometric analysis.

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A&M Recognized Arbitration Expert Witnesses in 2026:

Aaron Stai
Houston
Andrew Drennan
London
Colin Johnson
London
Dean Graves
Houston
John Williams
Calgary
Juan Valderas
Madrid
Khaleda Wheeler
London
Leonardo Florencio
São Paulo
Luke Steadman
London
Matthias Laue
Hamburg
Michelle Metz
London
Nikki Coles
London
Owain Stone
Melbourne
Serhat Abay
London
Vinícius Daher
São Paulo
Thought Leadership
Global Competition Review Recognises A&M in 2026 GCR 100
December 1, 2025
Global Competition Review has recognised A&M in the 2026 GCR 100 rankings. The GCR 100 highlights the world’s best competition practices by providing a quantitative and qualitative analysis of the law firms and economic consultancies doing the most important antitrust work globally.
Thought Leadership
Dubai Arbitration Week: Post Event Wrap-Up
November 24, 2025
A&M’s Disputes and Investigations practice proudly sponsored the 2025 Dubai Arbitration Week (DAW), held last week. As a key annual event in the arbitration calendar, DAW connects regional and global communities.
Thought Leadership
The Life Cycle of a Construction Dispute: An Expert Perspective
November 24, 2025
Managing Director Andrew Drennan outlines the key stages of a construction dispute and shows how experts can help parties diagnose issues early, navigate negotiation, arbitration, or litigation, and capture lessons learned for future projects.
Case Studies
Navigating India’s Digital Personal Data Protection Rules, 2025: Strategic POV
November 23, 2025
As India implements the Digital Personal Data Protection Act (DPDPA) 2025, organisations are required to enhance their data governance, security protocols, and overall compliance frameworks. With phased enforcement commencing this year, the obligations placed on Data Fiduciaries, Significant Data Fiduciaries, and Consent Managers are considerably elevated.
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