expert witnesses
Construction Accounting and Costs Expert Witnesses: 21
Architect Construction Management Expert Witness Jeffrey Weinstein
Office of Design & Construction
2115 Third Street, Suite 208
Santa Monica CA
90405
USA
phone: 805-798-0010
Civil Engineering Land Survey Expert Witness James Wamble
James D. Wamble, PE, RLS
PE, RLS
216 Centerview Drive, Suite 180
Brentwood TN
37027
USA
phone: 615-251-9555
James D. Wamble, PE, RLS has over 40 years of experience as a Professional Civil Engineer and Registered Land Surveyor. During the course of his career, Mr. Wamble has worked on land planning, land surveying, or civil engineering projects in all counties of the middle and west Tennessee regions, and several counties in east Tennessee. Mr. Wamble has offered litigation support services as an expert witness in cases since 1976. In the last four years, he has testified 10 times in 7 lawsuits. These litigation cases include land planning, land surveying, and civil engineering issues. Mr. Wamble has experience with depositions, trials, hearings, and arbitrations.
Expert Witness Services Include:
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Areas of Expertise:
- Civil Engineering: Design of grading, drainage, utilities, roads, lakes, dams, detention basins, parking lots, shopping centers, subdivisions, apartments, condominiums, planned unit developments, specific plans, industrial parks, mobile home parks, mini warehouses, hotels and office building site plans; flood, drainage, and utility studies; low impact design; financial developability and constructability analysis of proposed developments; preparation of cost estimates; assisting clients in setting project budgets; designing projects to contain cost within determined project budget; construction project management, inspection, administration, and processing of contractors’ pay requests
- Land Surveying: Topographic, Route, Land, Boundary, Utilities, Aerial ground control, Engineering design, and Construction Surveys
- Land Planning: Land use/development feasibility analysis, planning and concept design of residential, commercial, industrial and municipal projects; zone change applications; planned unit development and specific plan applications; site selection consultation; and graphic presentations
Construction Claims Experts Long International
Richard J. Long, P.E., P.Eng.
Founder
Corporate Headquarters:
10098 Whistling Elk Drive
Littleton CO
80127-6109
USA
phone: (303) 972-2443
fax: (303) 200-7180
Florida Office:
Andrew Avalon, PE, PSP
Chairman & CEO
8633 Willow Kane Court
Orlando, FL 32835
aavalon@long-intl.com
T: (407) 445-0825 F: (407) 650-3399
Long International provides expert engineering and construction claims analysis, expert testimony, project management consulting, and insurance claims analysis services. We focus on projects in the following industries: building and construction; gas, gasification, GTL, LNG, and NGL; industrial and manufacturing; mineral and mineral processing; offshore oil and gas; oil sands; pipelines and utilities; power; refineries, petrochemical, and chemical; transportation; and water, wastewater, dams, and marine. We analyze claims, not limited to, disputed change orders, schedule delay, acceleration, time extensions, liquidated damages, loss of productivity, defective specifications, and deficient project management performance.
Richard J. Long, P.E., P.Eng., Founder of Long International, has over 50 years of U.S. and international consulting experience involving construction contract disputes analysis and resolution, arbitration/litigation support and expert testimony, project management, engineering/construction management, cost and schedule control, and process engineering. As an internationally recognized expert in the analysis and resolution of complex construction disputes for over 35 years, Mr. Long has served as the lead expert on over 300 projects having claims ranging in size from US$100,000 to over US$2 billion. He has presented and published numerous articles on claims analysis, entitlement issues, CPM schedule and damages analyses, cumulative impact claims, and claims prevention.
Rod C. Carter, CCP, PSP is President of Long International and has over 20 years of experience in construction project controls, contract disputes and resolution, negotiations, mediation, arbitration support, and expert testimony on scheduling, loss of productivity, and quantum issues. He has experience in entitlement, schedule, and damages analyses on over 30 construction disputes ranging in value from US$100,000 to US$7 billion, related to oil and gas, oil refinery, LNG, heavy civil, nuclear, environmental, chemical, power, industrial, commercial, and residential construction projects. Mr. Carter specializes in loss of productivity, cumulative impact, and quantum calculations, and had a lead role in assessing damages on more than a dozen major disputes. In addition, Mr. Carter has developed cost and schedule risk analysis models using Monte Carlo simulations to address the uncertainty of estimates and claims.
Scott M. Francis, P.E., PSP is a Vice President of Long International and has over 20 years of experience in project management, contract disputes analysis and resolution, CPM schedule preparation, execution, and analysis, productivity analysis, contract administration, design engineering, construction management, and government contracting. He provides schedule development and assurance services, cost estimating, and claims analysis services on projects for both owners and contractors. Specific responsibilities include CPM development and reviews, CPM schedule delay and acceleration analyses, change order impact analysis, issue identification, correlation of impacts to schedule activities, and productivity evaluations.
Landscape Design Expert Witness Stephen George
Stephen George
Owner
4967 Newport Avenue
#12-171
San Diego California
92107
USA
phone: 619-542-9125
fax: 619-542-9126
Landscape Architect Expert Witness Jerry Regenbogen
Jerry Regenbogen, PLA, ASLA
Principal
1063 Buist Ave.
North Charleston SC
29405
USA
phone: 843 813-3933
Construction Engineering Expert Witness Makarand Hastak
Prof. Makarand (Mark) Hastak, PhD, PE, CCP, CRIS
Principal Consultant
Indianapolis IN
46234
USA
phone: 765-430-1981
Prof. Makarand (Mark) Hastak, PhD, PE, CCP, CRIS, is the Professor and the Dernlan Family Head of Construction Engineering and Management as well as Professor of Civil Engineering at Purdue University. Dr. Hastak has been involved with the construction industry for the past 35 years providing his expertise through consulting, research, teaching, and service to the industry.
Dr. Hastak is a world renowned expert in the area of construction engineering and management including risk management, profitability of Construction companies, process improvement, disaster risk reduction, resilience and capacity building, infrastructure management, intelligent planning for the built environment, project control, project management decision-making, and strategic planning. As a Fellow of the American Council on Education (cohort of 2013-14) at Cornell University his work focused on the various facets of Hybrid RCM budget, engaged institution, and Public-Private Partnership in academia.
Dr. Hastak is a Professional Engineer (PE), a Construction Risk Insurance Specialist (CRIS), and a Certified Cost Professional (CCP). He 
has worked on numerous projects sponsored by the Construction Industry Institute (CII), NSF, State DOTs, and City Agencies. He is the current President of CIB (International Council for Research and Innovation in Building and Construction) and the Chair of the Advisory Board of teh Global Leadership Forum for Construction Engineering and Management programs (GLF-CEM). He also serves as an Academic Advisor to the Downstream and Chemicals Committee of the Construction Industry Institute (CII).
Dr. Hastak has authored over 200 publications in his areas of expertise. He has co-authored a widely used book on Infrastructure Planning, Engineering, and Economics (McGraw-Hill 2006 and 2015). Dr. Hastak served on the Education Board of the Association for Advancement of Cost Engineering (2004-2016). He was Editor for two AACE books, the Skills and Knowledge of Cost Engineering (6th Ed. 2015) and the CCP Certification Study Guide (2nd Ed. 2016). He was also the Editor-in-Chief of the ASCE Journal of Management in Engineering (2009-2016).
Dr. Hastak has given over 50 keynotes and invited lectures around the world. As a prominent educator and consultant, he also engages in developing training material and workshops as well as regularly teaching professional courses for the A/E/C industry. His services include consultation, on-site investigation, data collection, assessment, and reporting. He has completed the 30-Hour OSHA Hazard Recognition Training for the Construction Industry
Dr. Hastak Lectures at the 2015 International Conference on Building Resilience
Litigation Support - Dr. Hastak offers expert witness services to attorneys representing both plaintiff and defendant. He has served as an Expert Witness on twenty-six (26) cases since 2017 and was deposed on eight plus two evidence depositions. His services include case reviews, written reports, depositions, and trial testimony as needed.
Areas of Expertise:
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Construction Dispute Expert Witness Walter McBrier
Walter McBrier, PE
Principal
2323 W Spring Mountain Dr
Boise ID
83702
USA
phone: 208-996-9896
Walter McBrier, PE, is a Construction Expert Witness and Licensed Professional Engineer with nearly 25 years of hands-on construction experience spanning heavy civil infrastructure, master-planned communities, hospitality, multifamily, life sciences, and semiconductor capital projects. He works effectively for contractors, owners, developers, sureties, and insurance carriers. Mr. McBrier's goal in every engagement is to reach the earliest honest resolution — he is a strong advocate for mediation and settlement over prolonged litigation.
Litigation Support - Mr. McBrier's practice focuses on construction delay analysis, CPM schedule forensics, cost damages, change order disputes, and expert testimony in state and federal litigation, arbitration, and mediation across the western United States. His methodology is document-first. He withholds judgment until the contemporaneous record speaks — drilling through daily reports, RFIs, change order histories, and CPM schedule updates to find the evidence that tells the true story of a project. He has found case-defining facts buried twenty layers deep in handwritten subcontractor daily reports that no one else bothered to read.
Ideal Client Engagement - Construction litigation attorneys handling complex delay, cost, and schedule disputes who are focused on early resolution and settlement. Contractors, owners, developers, sureties, and insurance carriers involved in construction disputes requiring technically rigorous, credible expert analysis.
Areas pf Expertise:
- Delay Analysis – As-Planned vs. As-Built, Time Impact Analysis (TIA), and Window Analysis, in alignment with AACE 29R-03 and industry best practices.
- Construction Claims Preparation – Comprehensive documentation, cost and damages quantification, entitlement evaluation, and narrative development for both owners and contractors.
- Change Order Disputes – Forensic evaluation of disputed scope changes, productivity loss, acceleration costs, and schedule impacts, supported by detailed calculations and industry expertise.
- Schedule Disruption Analysis – Assessment of critical path shifts, resource inefficiencies, and resulting financial damages across complex projects.
Mr. McBrier founded GCM Group LLC on a single principle: Clarity Before Conflict. What separates Walter from other construction experts is straightforward: he has been in the fire. As Vice President / Project Director at McAlvain Construction, he managed complex commercial projects, negotiated multimillion-dollar change orders, and worked through significant construction disputes — including depositions — from the inside. That lived experience allows him to read a project record the way only someone who has actually run jobs can: feeling what happened, not just analyzing it.
Renewable Energy Expert Witnesses Due Diligence Professional Services
Nicholas Fiduccia, President & Co-Founder
Ron Riiter, Vice President & Co-Founder
217 Lorca Drive
Greenville SC
29605
USA
phone: 812-240-6215
Due Diligence Professional Services, Inc. (DDPSI )is a Construction Consulting and Expert Witness Firm that Specializes in Supporting Litigation and Representing Clients for Renewable Energy, Power, Heavy Civil, Underground Utilities, Building and other related Construction Specialty Projects. They are a diverse team with construction claims and project management expertise who value the importance of relationships and continue to distinguish themselves by showing clients that Experience + Talent + Strategy = Results.
Litigation Support - DDPS understands the complexities of dispute resolution and work extensively with attorneys to identify documents, prepare computerized document databases, establish document shared files, support witness statements, and prepare expert reports. Their construction and engineering litigation expert witnesses participate hands-on in all projects. They develop the methodology of analyses, analyze the relevant documentation, and develop support for opinions.
- Renewable Energy - Utility Scale Wind, Utility Scale PV Solar, Utility Scale Concentrated Solar Power, Biomass and Battery Storage
- Heavy Civil - Earthwork, Roads, Bridges Highways and Airports
- Power - Transmission, Distribution and Substation / Switching Yards
- Underground Utilities - Water, Reclaimed Water, Storm Drainage, Sanitary Sewer/Lift Stations, and Force Main
- Buildings - Commercial, Institutional, Industrial, and Heavy Civil
- Construction Specialties - Dewatering, Directional Drilling/Jack and Bore, Low Pressure Sewer, Fiber Optic Systems, Reinforced Earth Wall, Sound Barrier Wall, Telecommunication Infrastructure, Transformer – RCA of failures and Transmission Line Pole Remediation
Nicholas Fiduccia is President and Co-Founder of Due Diligence Professional Services, Inc. a Florida based expert witness service, construction claims specialist and project management consulting firm that focuses its practice on law firms, owners, engineering, construction firms, and contractors performing renewable energy, power, heavy civil, underground utilities, building and other related construction specialties.
Mr. Fiduccia has over 30 years of U.S. and Canadian construction experience involving construction contract disputes analysis and resolution, arbitration/litigation support and expert testimony, project management, engineering/construction management, cost and schedule control, and value-engineering.
Before co-forming Due Diligence Professional Services, Inc, Mr. Fiduccia had corporate-wide responsibility for technical management and oversight for the preparation and resolution of construction claims for 11 years for a utility-scale renewable energy and heavy civil infrastructure contractor, plus over 19 years of hands-on experience to ensure that profit, cost, schedule, scope, quality, and safety objectives were achieved for renewable energy, power, heavy civil, underground utilities, building and other related construction specialty projects.
Ron Ritter, Vice President and Co-Founder of Due Diligence Professional Services, Inc. has been responsible for on-site project management for Wind, Solar, Battery Energy Storage System (BESS) Projects, Heavy Civil Projects, and Underground Utility Projects over the last 25 years.
Mr. Ritter’s expertise in a full array of self-perform and key subcontractor oversight has allowed him to execute multiple EPC contracts successfully and safely.
Before co-forming Due Diligence Professional Services, Inc, Mr. Ritter successfully built a career in the construction industry that consisted of 45 years of hands-on, field experience. Twenty (20) years of that field experience has been spent building and supervising the construction of renewable energy facilities. Seventeen (17) years of his construction career have been spent as the senior field representative, directly responsible for the safe, timely, profitable and quality construction of 15 wind farms in the USA totaling 2,465 megawatts. Mr. Ritter has also worked on and supported the construction of wind farms and solar farms in Canada.
View Due Diligence Professional Services, Inc.'s Consulting Profile.
Building Design Construction Expert Witness David Morris
David Morris
El Cajon CA
92019
USA
phone: 619-572-3179
Construction Defect Expert Witness David Bekus
David M. Bekus
45 Hunt Lane
Skilllman NJ
08558
USA
phone: 732-735-7444
Dirt Earthmoving Expert Witness Steven Murow
Steven M. Murow
Chairman
16800 Astin, Ste. 200
Irvine CA
92606
USA
phone: 949-988-3271
Steven M. Murow has over 45 years of experience in the Land Development and Construction industry with expertise in Earthmoving, Site Development, Street Improvements, and Underground Utilities.
During that time, Mr. Murow has served as a principal in two leading contracting firms; consultant to major land developers; specifier and bid administrator; senior project manager, and as an expert witness.
Litigation Support - Over the past 20 years, Mr. Murow has supported developers, municipalities, builders, and contractors through their legal teams. He has a perspective on general engineering contracting unmatched by opposing experts in the field having been involved in the bidding of over 2,000 projects since 1978 and managing over 300 of those projects in the mass grading and site development arena as a principal owner of the firm. Mr. Murow has been deposed 70 times and testified in trial / arbitration 34 times. His expertise has been called upon in Dallas, Texas, Conway, Ark. and throughout California.
Areas of Expertise:
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"DIRT, not civil engineering or geotechnical, but as a general engineering contractor performing the work and as a Construction Manager managing the work on projects up to 1,200 Acres and $50,000,000 in value. I can tell you how it was bid, should have been bid, where it went wrong, and cost to repair." - Steven M. Murow
Construction Defect Expert Witness Joe Scerbo
Joe Scerbo
Senior Principal
696 San Ramon Valley Blvd., #290
Danville CA
94526
USA
phone: 925-580-6156
Joe Scerbo is a distinguished expert witness, construction consultant, and construction management advisor with over 36 years of experience in the construction industry. As a licensed General, Electrical, and HVAC Contractor in California for 25 years, Mr. Scerbo has cultivated specialized expertise in Building Envelope, Mechanical, Electrical, and Plumbing (MEP) systems. His extensive background includes significant experience in mechanical systems, heating & cooling systems, ventilation, solar energy systems, battery energy storage systems (BESS), generators, and design-build projects.
Litigation Support - Mr. Scerbo and his team at Danliv provide comprehensive forensic consulting and litigation support services for all things related to Construction Defects, Standard of Care Issues, Non-conforming of Contractors Licensing Laws, and Cost of Repairs. Serving defense and plaintiff attorneys, insurance companies, and government agencies across the United States. Mr. Scerbo has been disclosed as a designated expert on numerous cases and consulted on over thirty cases for advice as well as field investigations, document evidence evaluation, and material findings.
Areas of Expertise:
| General Construction Framing Building Envelope Mechanical Electrical Commercial Residential HVAC Fire Sprinkler Generators | MEP Solar Fire Gas Hybrid Water Heaters Contract Scope Cost to Repair Industrial Controls Electrocutions Plumbing |
Mr. Scerbo brings extensive expertise across multiple sectors, including single-family, multifamily, hospitality, commercial construction, renewable energy, and utility-scale infrastructure projects. Well-versed in framing, flashing, metal and composite roofing, concrete, exterior cladding systems such as Portland Cement Stucco, underground construction, MEP issues and opines on standard of care for contractors, construction managers, inspection companies and specialty sub-contractor services. He has hired and supervised engineering and design teams for Design-Build projects and Construction Defect cases, ensuring precision and compliance.
Construction Defect Expert Witness Sanford Loy
Sanford C. Loy , CCM, B.Arch, MSCE
Principal
200 Prosperity Drive
Knoxville TN
37923
USA
phone: 865-675-3603, ext. 102
fax: 865-675-0009
Sanford C. Loy , CCM, B.Arch, MSCE, has over 40 years of experience in the Construction Industry. Mr. Loy has Degrees in Architecture and Engineering. A Certified Construction Manager (CCM), he is committed to the Code of Ethics and Standards of Professional Practice established by the Construction Management Association of America. CCM is the ANSI accredited professional designation for construction management and is the gold standard for CM service providers in over 145 countries.
Background Experience - Mr. Loy's experience spans virtually every type of building and design process. His strength centers on his understanding of the dynamics and interactions of the various trades and professions unique to every building project. He has experience with Construction Management at Risk, Construction Management Agency, Design-build, and Design-bid-build. Having successfully managed the completion of over one billion dollars of construction, Mr. Loy served as a Regional Engineer for the American Institute of Steel Construction and as Director of Construction and Development for Belz Enterprises, the largest development company in Tennessee, before founding Construction Strategies in 1988.
Litigation Support - Mr. Loy provides Construction Claim and Dispute Analysis services, with special expertise in Concrete Design and Design-Build. Having been a teacher of many of the principles and processes used in the industry he knows how to explain the difficult technical aspects of the information and analysis in a way which makes the facts understandable and believable to opposing counsel, insurance companies, judges, and juries. Mr. Loy has experience and provides assistance with various dispute resolution approaches, such as Owner / Contractor dispute resolution boards, arbitration, mediation, and provides expert witness testimony if necessary.
See services offered at https://www.construction-strategies.com/what-we-do
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