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Who's Who Legal
Who's Who Legal
Thought Leaders

Thought Leaders

Thought Leader

Thought Leaders - Construction Experts 2020
WWL Ranking: Thought Leader

Global Leader

WWL Ranking: Recommended

Peers and clients say:

“Mark possesses a unique skill-set that combines his prior practical experience as a multi-state professional engineer with his years in the claims arena to an outstanding expert witness”

“He provides comprehensive insights into critical issues, credible on-stand testimony and presentations at both bench and jury trials as well as alternative dispute forums”

“He possesses strong advocacy, speaking and writing skills for his clients”


Mark has over 30 years of dispute resolution, project advisory, claims analysis and risk management experience, spanning a wide range of domestic and international projects, including oil & gas, power, petrochemical, process and infrastructure facilities.

He has extensive experience in the analysis of construction disputes, construction claims preparation and the provision of litigation support and expert witness testimony services.  He has managed the performance of construction and engineering analysis including schedule delay, disruption, acceleration, change orders, productivity, causation and responsibility, cumulative impact, differing site conditions, workmanship, damage quantification, business interruption, project controls and termination.

Prior to joining J.S. Held, Mark held various leadership positions at some of the world's largest professional service's firms. In these roles, he was responsible for providing advisory services relating to construction/project management, claims prevention, project risk management, project design and development, management evaluations, construction audits, policies and procedures development, scope change management and feasibility studies. Specifically, he consulted on schedule development, construction management, contract administration, cost estimating, project controls, procurement, evaluation of E&O, startup and commissioning, project close-out, claims management training and value engineering. 

Mark has presented expert witness testimony in an array of domestic and international venues including AAA, ICC and UNCITRAL arbitrations, as well as U.S. courts. He has testified in over 30 matters involving large and complex construction projects with claim values typically in excess of US$100m and ranging well in excess of US$1bn. 

His areas of testimony have included schedule delay, productivity, cost and damages, scope change and project management performance. Mark has also presented at numerous mediations and alternative dispute resolution venues.

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