Expert Witness & Litigation Support

Independent construction analysis for complex claims and disputes.

GCM Group supports counsel, insurers, sureties, owners, and other dispute stakeholders with clear, defensible analysis of construction schedules, costs, change orders, project controls, and the contemporaneous project record.

Forensic Schedule & Delay Analysis

As-planned versus as-built analysis, critical-path evaluation, time-impact and windows analysis, concurrency assessment, schedule reliability review, and the identification and quantification of delay periods using recognized industry methodologies.

Change Orders, Entitlement & Causation

Evaluation of disputed scope, contractual responsibility, notice and documentation, pricing support, schedule effects, acceleration, disruption, and the relationship between claimed impacts and the underlying project record.

Cost & Damages Quantification

Analysis of claimed direct costs, extended-duration costs, escalation, productivity impacts, completion costs, disputed payments, and other damages using project records, cost data, and transparent calculations.

Construction-Management Standard of Care

Assessment of project administration, scheduling, cost control, change management, coordination, documentation, and the reasonableness of construction-management practices within the defined scope of the assignment.

Expert Reports, Rebuttals & Dispute Support

Clear opinions, detailed reports, declarations, rebuttal analyses, chronologies, calculations, and visual exhibits developed to support mediation, arbitration, deposition, and trial.

Disciplined, Record-Based Opinions

Our work begins with the documents, the contract framework, and the contemporaneous record. Opinions are limited to the evidence and professional disciplines within the engagement and can be supplemented when additional documents or testimony become available.

Specialized Technical Support

Estimating, cost analysis, schedule analysis, claims evaluation, and damages quantification are core GCM capabilities. When an assignment requires architectural, engineering, code, structural, or another specialized discipline, qualified professionals can be integrated into the expert team. GCM Group does not provide architecture or engineering design services.

Clarity for Counsel and Decision-Makers

The objective is not to make a complicated record sound more complicated. It is to identify the critical issues, explain the analysis transparently, and present conclusions that can withstand scrutiny.