Mr. Rush has more than 25 years of experience advising clients and provided expertise on critical issues involving valuation, finance, and economics. He leads projects, develops complex financial models, and testifies on behalf of businesses and sovereigns around the world. His approach to damages claims is methodical, transparent, and practical.
Washington, DC
Mr. Rush has advised claimants and respondents across six continents facing critical and time-sensitive challenges. He has served as an expert in ICSID, ICC, AAA-ICDR, JCAA arbitrations, and U.S. court cases.
Mr. Rush’s work has spanned many industries including: financial services, telecom, mining, real estate, transportation, luxury goods, infrastructure, technology, and energy. He has a track record of successful quantum outcomes, which has helped establish influential damages precedents.
Lexology Index (previously Who’s Who Legal) recognizes Mr. Rush as “simply outstanding,” bringing “all of the skills you need in an expert witness” to complex multi-jurisdictional disputes in the real estate, financial services, and transport sectors, among others. He receives international acclaim for his deep technical knowledge of damages and valuation claims arising from the mining sector and is noted for his significant experience in the valuation of mining claims. Mr. Rush is also praised as “easy to work with and truly outstanding.”
Mr. Rush’s work as a damages and valuation expert is informed by previous roles analyzing anticompetitive trade and commercial practices as well as advising private equity backed companies on revenue enhancement strategies.
Secretariat Experts Receive Recognition in Lexology Index Thought Leaders – USA 2025
Secretariat is proud to announce that 13 Secretariat experts have been recognized by Lexology Index (formerly Who’s Who Legal) as USA Thought Leaders in its 2025 rankings.
A New Perspective on Spatial Heterogeneity in African Development
Nicolas Suarez, an economist at Secretariat, together with Pascaline Dupas and Zhongyi Tang, present “A New Perspective on Spatial Heterogeneity in African Development”, which addresses the long standing debate on the effect of national institutions on development outcomes.
Assessing Material Adverse Event Clauses Amid Iran Conflict
In a recent Law360 article, Amran Nawaz and Ralph Stobwasser examine how MAE provisions are being tested amid ongoing regional disruption and the financial analysis needed to support or challenge them.