Expert Witness & Litigation Support Services

Clarity in Construction Claims and Litigation

Trusted expertise in scheduling, cost analysis, and dispute resolution - delivering defensible insights that stand up in mediation, arbitration and court.

At GCM Group, we uncover the truth in complex construction disputes. With over 20 years of real-world experience and deep expertise in forensic cost and schedule analysis, we deliver clear, credible insights that drive favorable outcomes for legal teams, insurers, owners and contractors.

Contact Us

waltm@globalcostmanagement.com

Who We Serve


  • Litigators - Expert reports, rebuttals, and testimony that simplify complex construction issues.

  • Owners & Developers - Clear visibility into exposure, entitlement, and damages

  • Contractors - Independent analysis to support or defend against delay and cost claims

  • Insurance & Surety Groups - Expert evaluation of construction defects, liability and coverage-related claims


Areas of Expertise

  • Forensic Schedule Analysis (AACE 29R-03, MIP 3.3)

  • Change order and Delay Claim Evaluation

  • Cost & Damage Quantification

  • Litigation Support - Expert reports, rebuttals and courtroom testimony

  • Strategic Cost Management - Budgeting, cost control, and risk reviews to prevent disputes before they escalate.


Why Choose GCM Group

  • Experience that Matters - Over 20 years across field operations, cost controls and executive leadership

  • Methodologies that Stand Up - AACE protocols, forensic standards and data-driven analysis

  • Clarity for Complex Issues - Breaking down thousands of pages of project data into clear, defensible insights

  • Trusted Across Sectors - From high-tech labs to multifamily, heavy civil and commercial development


When clarity matters most - get expert insight that holds up.

Schedule a consultation with GCM Group