Find the Right Expert for Every Case

Expert Witness

Barry Taheri is a construction defects expert specializing in forensic investigations and exterior envelope failure analysis. With a career spanning forensics, weatherization, and field testing, he brings a comprehensive understanding of building science and waterproofing systems to his litigation work. His work centers on investigating construction defects, assessing weatherization failures, and evaluating whether industry standards were met in building enclosure systems. Mr. Taheri has been retained in numerous expert witness and consulting engagements across California, involving construction defect cases in residential, commercial, and retail properties. His education from the USC School of Architecture and Engineering, along with certifications such as the DuPont Envelope certification (DWSRC 1082) and California Contractor’s License (B 904491), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving waterproofing systems and construction engineering.

Principal Forensic Environmental Chemist

Paul E Rosenfeld Ph.D. is a forensic environmental chemist expert specializing in chemical fate and transport, risk-dose assessment, and air dispersion modeling. With a career spanning exposure assessment, historical dose reconstruction, and environmental forensics, he brings a multidisciplinary scientific framework to litigation work. His work centers on investigating environmental contamination, assessing exposure pathways, and evaluating whether regulatory compliance was met. Dr. Rosenfeld has been retained in numerous expert witness and consulting engagements nationwide, involving environmental contamination, asbestos exposure, and air emissions cases. His Ph.D. in Soil Chemistry from the University of Washington, along with HAZWOPER certification, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving hazardous pollutants and human-health risk.

Chartered Quantity Surveyor | CILEX Chartered Paralegal | Forensic Delay Analyst | Chartered Construction Manager | Expert Witness | Registered Adjudicator | Registered Arbitrator

Mark Holden-Smith LLB(Hons) FCIArb MRICS PCILEX MCIOB DipAdj DipArb is a construction claims and forensic delay analysis expert specializing in dispute resolution. With a career encompassing roles in quantity surveying, construction management, and legal analysis, he brings a multifaceted perspective to litigation work. His work centers on investigating construction claims, assessing forensic delay impacts, and evaluating whether contractual obligations have been met. Mr. Holden-Smith has been retained in numerous expert witness and consulting engagements across the UK, involving construction claims, engineering disputes, and contract adjudications. His Bachelor of Laws Honours Degree, along with certifications such as the RICS Expert Witness Certificate, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving construction and engineering contracts.

Managing Director

Casey K. Hemmatyar, PE, SE is a forensic engineering expert specializing in construction litigation support. With a career spanning structural failure analysis, seismic hazard evaluation, and building code development, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating structural failures, assessing construction defects, and evaluating whether seismic retrofits meet industry standards. Mr. Hemmatyar has been retained in numerous expert witness and consulting engagements across the United States and Canada, involving construction defects, structural failure investigations, and seismic retrofitting cases. His BS in Structural Engineering from the University of Science & Technology, along with his SE and PE licenses in multiple states, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving structural integrity and construction practices.

CPA, ABV

Brian Nolte, CPA, ABV is a forensic accounting expert specializing in business valuation and intellectual property valuation. With a career encompassing diverse accounting and financial disputes, he brings a nuanced understanding of complex financial analyses to litigation work. His work centers on investigating financial discrepancies, assessing lost profits, and evaluating whether intellectual property valuations are accurate. Mr. Nolte has been retained in numerous expert witness and consulting engagements across California, involving cases such as business valuation, intellectual property disputes, and royalty audits. His coursework involving the functional equivalent to an accounting degree from the University of California, Los Angeles, along with his Certified Public Accountant (CPA) and Accredited in Business Valuation (ABV) certifications, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving financial misrepresentation and valuation discrepancies.

Chief Forensic Engineer

Ronald A Bova, PE, DFE is a forensic engineering expert specializing in structural failure analysis and construction defects. With a career spanning structural engineering, forensic investigation, and civil engineering liability, he brings a comprehensive framework to litigation work. His work centers on investigating structural failures, assessing construction defects, and evaluating whether civil engineering standards were met. Mr. Bova has been retained in numerous expert witness and consulting engagements across the United States, involving structural failure analysis and construction defect cases. His B.S. in Civil Engineering Technology, along with his Board Certified Diplomate in Forensic Engineering, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving structural and civil engineering issues.

Expert Witness & Consultant

Dr. John R. Black, D.B.A. is a police use of force and practices expert specializing in the analysis of police tactics, officer-involved shootings, and decision-making processes. With a career encompassing law enforcement operations, military service, and advanced academic research, he brings a comprehensive systems thinking approach to evaluating complex use of force incidents. His work centers on investigating police practices, assessing decision-making frameworks, and evaluating whether proper protocols were followed in use of force events. Dr. Black has been retained in numerous expert witness and consulting engagements across international, federal, and state jurisdictions, involving police practices, use of force, and civilian self-defense cases. His Doctor of Business Administration in Business Intelligence, along with certifications such as Certified Litigation Specialist (C.L.S.) – Police and Force Science Institute analysis certified – Advanced, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving police use of force and decision-making processes.

Economic damages expert witness

Nicole A. Liska is an economic damages expert specializing in applied economic and statistical modeling for litigation involving personal injury, wrongful death, employment-related cases, class action claims, and commercial disputes. With a career spanning diverse industries and complex case types, she brings a multidisciplinary analytical framework to her litigation work. Her work centers on investigating economic damages, assessing statistical evidence, and evaluating whether financial losses align with alleged claims. Ms. Liska has been retained in numerous expert witness and consulting engagements across federal and state courts, involving cases such as personal injury, wrongful termination, discrimination, intellectual property, and antitrust disputes. Her M.A. in Economics from the University of California, San Diego, along with her membership in the National Association of Forensic Economics and the American Academy of Economic and Financial Experts, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of economic damages in disputes involving lost earnings, class action claims, and commercial litigation.

Certified Public Accountant

Michael Goldman, Certified Public Accountant, Certified Valuation Analyst, Certified Fraud Examiner, Certified in Financial Forensics, Master of Management is a forensic accounting and economic damages expert specializing in litigation support for fraud, insolvency, and business valuation cases. With a career encompassing diverse roles in financial oversight, corporate restructuring, and forensic investigations, he brings a multifaceted perspective to his litigation work. His work centers on investigating financial discrepancies, assessing economic damages, and evaluating whether fraudulent activities have occurred. Mr. Goldman has been retained in numerous expert witness and consulting engagements across the United States, involving cases of fraud, shareholder disputes, and bankruptcy proceedings. His Master of Management in Finance and Accounting from Northwestern University, along with certifications as a Certified Public Accountant, Certified Valuation Analyst, Certified Fraud Examiner, and Certified in Financial Forensics, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation and responsibility in disputes involving financial fraud and economic damages.

CPA, CFE, CFF, ABV

Jennifer A. Oyadomari, CPA, CFE, CFF, ABV is a forensic accounting expert specializing in litigation support services. With a career encompassing financial accounting, business valuation, and fraud investigation, she brings a multifaceted perspective to her litigation work. Her work centers on investigating financial discrepancies, assessing economic damages, and evaluating whether business valuations align with industry standards. Ms. Oyadomari has been retained in numerous expert witness and consulting engagements across Nevada, involving cases in the cannabis industry, shareholder disputes, and marital dissolutions. Her Master of Science in Accounting, along with certifications as a CPA, CFE, CFF, and ABV, reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving forensic accounting and business valuation.

Firearm and Tool Mark Examiner

Dean S. Molnar, Jr. is a firearm and tool mark examination expert specializing in crime scene analysis and shooting reconstruction. With a career encompassing forensic science operations and quality assurance, he brings a comprehensive operational framework to his litigation work. His work centers on investigating firearm function and operability, assessing shooting scene reconstructions, and evaluating whether forensic methodologies adhere to accreditation standards. Mr. Molnar has been retained in numerous expert witness and consulting engagements across Michigan, involving criminal cases related to firearms and tool mark identification. His Bachelor of Science in Criminal Justice and Bachelor of Science in Fire Science, along with his membership in the Association of Firearm and Tool Mark Examiners (AFTE) and the American Society of Crime Laboratory Directors (ASCLD), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving firearms trajectory analysis and crime scene reconstruction.

Chief Forensic Analyst

Nick Barreiro, BAC, AVFA, DIVRT, AFCE is a forensic video, audio, and image analysis expert specializing in evidence recovery and authentication. With a career encompassing forensic investigations, law enforcement, and advanced technical training, he brings a multifaceted perspective to litigation work. His work centers on investigating digital media authenticity, assessing evidence integrity, and evaluating whether forensic standards have been met. Mr. Barreiro has been retained in numerous expert witness and consulting engagements across the United States, involving complex criminal and civil cases. His major in Communications from the University of California at Davis, along with certifications such as Certified Audio Video Forensic Analyst (AVFA) and Amped FIVE Certified Examiner (AFCE), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of evidence authenticity and integrity in disputes involving digital media forensics.

Senior Associate, S-RM Digital Forensics

Ryan Shields, MSc, BEng (Hons), MEWI is a digital forensics expert specializing in high-profile and complex disputes. With a career spanning digital forensics, cyber incident response, and expert witness testimony, he brings a comprehensive investigative framework to litigation work. His work centers on presenting digital evidence, investigating evidence tampering, and evaluating the authenticity of digital data. Mr. Shields has been retained in numerous expert witness and consulting engagements across diverse industries and jurisdictions, involving criminal and civil matters. His MSc in Cyber Security, along with certifications such as GIAC: Certified Cloud Forensic Responder (GCFR) and Certified Ethical Hacker, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving digital evidence and cybersecurity breaches.

Assistant Professor of Clinical Psychiatry

Lawrence Amsel, M.D., M.P.H. is a forensic psychiatry expert specializing in psychiatric malpractice and trauma-related litigation. With a career encompassing psychiatric research, clinical practice, and academic instruction, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating psychiatric malpractice, assessing trauma and PTSD claims, and evaluating whether healthcare standards were met in psychiatric care. Dr. Amsel has been retained in numerous expert witness and consulting engagements across the United States, involving cases of psychiatric personal injury, trauma, and healthcare standards. His M.D. in Medicine from Yale University School of Medicine and M.P.H. in Public Health/Biostatistics from Columbia University School of Public Health, along with his Diplomate certification from the American Board of Psychiatry and Neurology, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving psychiatric malpractice and trauma.

Mechanical and Structural Engineering Leader

Tarek A. Omar, D.Sc. is a Mechanical and Structural Engineering expert specializing in accident reconstruction and forensic engineering. With a career encompassing mechanical design, structural analysis, and transportation safety, he brings a multidisciplinary approach to complex litigation matters. His work centers on investigating accident causation, assessing vehicle crashworthiness, and evaluating whether safety standards were met. Dr. Omar has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to mechanical engineering, transportation safety, and physical security. His Doctorate of Science in Mechanical Engineering from George Washington University, along with his extensive experience in Finite Element Analysis (FEA) and forensic engineering, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving vehicle dynamics, crashworthiness, and structural integrity.

Quality Assurance and Laboratory Operations Consultant

Ryan Larrison is a forensic science and quality assurance expert specializing in forensic laboratory operations and program management within criminal litigation. With a career encompassing forensic laboratory operations, quality assurance, firearms examination, and large-scale systems management, he brings a strategic and operational perspective to his litigation work. His work centers on evaluating forensic laboratory methods, assessing compliance with accreditation standards, and determining the reliability of forensic conclusions. Mr. Larrison has been retained in numerous expert witness and consulting engagements across the United States, involving forensic laboratory operations and quality assurance in criminal cases. His Bachelor of Science in Biology and MBA in Executive Leadership, along with his specialized training in ISO 17025 laboratory standards, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of reliability and compliance in disputes involving forensic laboratory practices.

Expert Witness – Architecture & Construction Consulting

Marcus A. Marino, AIA, NCARB is an architecture and construction consulting expert specializing in forensic analysis and litigation support. With a career spanning architectural design, zoning disputes, and construction defect analysis, he brings a comprehensive framework to evaluating architectural standard of care and duty to warn in complex cases. His work centers on investigating construction defects, assessing compliance with building codes, and evaluating whether professional practice standards were met. Mr. Marino has been retained in numerous expert witness and consulting engagements across the United States, involving architectural design, zoning and property disputes, construction defects, and professional liability. His Master in Science of Architecture and Urban Design from Columbia University, along with his Certificate Holder status with the National Council of Architectural Accreditation Boards, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of standard of care in disputes involving architectural design and construction practices.

Board Certified Indoor Environmental Consultant

STEVEN J. MCLEOD, CIEC, CMC, IEP, WDR, AMRT is an Indoor Environmental Consultant expert specializing in forensic analysis of indoor air quality, mold remediation, and water damage restoration. With a career spanning building science, forensic analysis, and environmental exposure testing, he brings a comprehensive framework to litigation work. His work centers on investigating indoor air quality issues, assessing mold remediation protocols, and evaluating whether industry standards have been met. Mr. McLeod has been retained in numerous expert witness and consulting engagements across the United States, involving residential, commercial, and pharmaceutical facilities. His Master in Green Building Science, along with certifications such as Board Certified Indoor Environmental Consultant (CIEC) and Board Certified Indoor Environmental Professional (IEP), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving indoor environmental conditions.