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Expert Witness Directory

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Browse our verified directory of expert witnesses spanning medicine, engineering, finance, and dozens of specialized fields.

Showing 469–486 of 3,373 experts

Questioned Document Examination

Larry F. Stewart

Chief Forensic Scientist and President

San Luis Obispo, CA★ 8.7

Larry F. Stewart, Master of Forensic Sciences is a forensic science expert specializing in questioned document examination and forensic chemistry. With a career encompassing roles in government and private practice, he brings a multifaceted perspective to litigation work involving complex forensic analyses. His work centers on investigating historical evidence, assessing authenticity of documents, and evaluating whether forensic standards have been met in high-profile cases. Mr. Stewart has been retained in numerous expert witness and consulting engagements globally, involving cases such as the Unabomber, the John Wilkes Booth diary, and the 9/11 terrorist attacks. His Master of Forensic Sciences degree in Forensic Sciences, along with certifications such as Certified Forensic Consultant, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of authenticity and responsibility in disputes involving questioned documents and forensic investigations.

Forensic ChemistryInk AnalysisFraud Investigations+3
Trucking and Transportation

John Ross

Heavy Vehicle Specialist / Expert Witness

Tucson, AZ46 years+ yrs★ 8.7

John Ross is a heavy vehicle specialist expert specializing in commercial motor vehicle cases. With a career encompassing extensive experience in trucking safety standards, driver training, and hazardous materials transport, he brings a comprehensive understanding of industry regulations and practices to his litigation work. His work centers on investigating truck driver actions and reactions, assessing compliance with Federal Motor Carrier Safety Regulations, and evaluating whether proper safety and maintenance protocols were followed. Mr. Ross has been retained in numerous expert witness and consulting engagements across the United States, involving commercial motor vehicle accidents, hazardous materials transport, and oversized load handling. His certifications as a Certified Classroom Instructor for Defensive Driving and a Licensed Private Investigator 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 trucking and transportation safety.

Truck Driver Actions, Reactions, Responsibilities, Qualifications and TrainingOperation, Inspection and Maintenance of Tractor-TrailersOversized Load Handling+1
Education & Schools

Robert H. Kelly, Ph.D.

Reading, Literacy, and Special Education Expert

Jacksonville, FL21 years+ yrs★ 8.7

Robert H. Kelly, Ph.D. is a Reading, Literacy, and Special Education expert specializing in literacy intervention and assessment for struggling readers. With a career spanning educational leadership, curriculum development, and literacy research, he brings a nuanced understanding of literacy challenges and solutions to his litigation work. His work centers on investigating literacy intervention efficacy, assessing reading and writing proficiency, and evaluating whether educational practices meet established standards. Dr. Kelly has been retained in numerous expert witness and consulting engagements across Florida, involving cases related to literacy education, curriculum effectiveness, and educational standards compliance. His Doctor of Philosophy in Reading and Literacy in Early and Middle Childhood, along with his Professional Teacher Certification from the Florida Department of Education, 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 literacy education and intervention programs.

Fire

Robert B. Rappaport

Consultant

Santa Barbara, CA32 years+ yrs★ 8.7

Robert B. Rappaport, CA P.I. Lic. No. 26789 is a fire and arson investigation expert specializing in fire origin and cause determination. With a career spanning fire service, arson investigation, and fire prevention, he brings a comprehensive investigative framework to litigation work. His work centers on investigating fire scenes, assessing liability and subrogation potential, and evaluating whether fire codes and standards were adhered to. Mr. Rappaport has been retained in numerous expert witness and consulting engagements across California, involving fire and arson cases, insurance claims, and fire prevention disputes. His B.S. degree in Business Administration, along with certifications such as Certified Fire Investigator (CFI) and Certified Fire and Explosion Investigator (CFEI), 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 fire origin and cause.

Fire InvestigationArson Investigation
Products Liability

Mingxi Zheng

Materials/Mechanical Engineer

Berkeley, CA12 years+ yrs★ 8.7

Mingxi Zheng, M.S., P.E. is a materials and mechanical engineering expert specializing in products liability and failure analysis. With a career encompassing metallurgy, fracture mechanics, and additive manufacturing, she brings a strategic insight into identifying key evidence and information crucial to case resolution. Her work centers on investigating material failures, assessing manufacturing processes, and evaluating whether design defects contributed to product liability claims. Ms. Zheng has been retained in numerous expert witness and consulting engagements across California, involving aerospace, consumer products, and industrial equipment cases. Her M.S. in Materials Science and Engineering, along with her Licensed Professional Engineer designation in California, 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 mechanical engineering and materials science.

Mechanical EngineeringAdditive manufacturingAerospace/Space launch+14
Police Practices & Procedures

Dr. Ken Lang

Consultant and Associate Professor

Milligan, Tennessee37 years+ yrs★ 8.7

Dr. Ken Lang, Ph.D. is a criminal justice and forensic art expert specializing in criminal investigations, violent crimes, and police practices and procedures. With a career encompassing law enforcement, higher education, and forensic artistry, he brings a multifaceted perspective to his litigation work. His work centers on investigating criminal cases, assessing use of force incidents, and evaluating police procedures. Dr. Lang has been retained in numerous expert witness and consulting engagements across the United States, involving cases of violent crimes, police practices, and forensic art. His Ph.D. in Criminal Justice from Walden University, along with certifications from the Maryland Police Training Commission and the FBI, 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 criminal investigations and law enforcement practices.

Law Enf & Criminal JusticeCriminal InvestigationsViolent Crimes+3
Inspection

Bud Rozell

Professional Real Estate Inspector

Dallas, TX34 years+ yrs★ 8.7

Bud Rozell, ACI, TREC Inspector License #4088, Certified Applicator #561975 is a Professional Real Estate Inspection expert specializing in home and commercial property inspections, including wood-destroying insect assessments. With a career spanning inspection, new construction, and standard of care evaluations, he brings a comprehensive framework to litigation involving property disputes. His work centers on investigating inspection compliance, assessing construction standards, and evaluating whether industry practices were adhered to. Mr. Rozell has been retained in numerous expert witness and consulting engagements throughout North Texas, involving real estate, home inspections, builder client disputes, and insurance claims. His Texas Real Estate Property Inspection Certification from Texas Tech University, along with ACI Certification and TREC Inspector License, 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 home inspection and real estate practices.

New ConstructionStandard Of CarePre-Pour Inspections+17
Hotel & Restaurant

Gregory R. Riehle

Consultant, Mediator, Arbitrator

Wesley Chapel, FL44 years+ yrs★ 8.7

Gregory R. Riehle, JD is a hospitality and insurance expert specializing in legal, operational, and insurance matters within the hotel and restaurant industries. With a multifaceted career encompassing roles as a commercial litigator, hotel operator, and insurance executive, he brings a comprehensive legal and operational framework to his litigation work. His work centers on investigating insurance claims, assessing operational compliance, and evaluating whether industry standards have been met. Mr. Riehle has been retained in numerous expert witness and consulting engagements across the United States, involving resort asset management, hotel operations, and insurance disputes. His Juris Doctor in Law from the University of Southern California Law School, along with his active membership in the Florida Bar, 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 hospitality operations and insurance claims.

Insurance
Aviation & Aerospace

John R. Bell II

Pilot and Aviation Consultant

Wichita, KS42 years+ yrs★ 8.7

John R. Bell II is an aviation & aerospace expert specializing in corporate aviation development and management consulting. With a career encompassing diverse roles in aviation management, flight instruction, and international flight operations, he brings a comprehensive understanding of aviation systems and compliance to his litigation work. His work centers on evaluating aircraft operations, assessing aviation safety compliance, and investigating pilot training and certification standards. Mr. Bell has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving corporate aviation, Cessna Citation operations, and aviation safety compliance. His coursework in aeronautics at Embry-Riddle Aeronautical University, along with certifications such as FAA Airline Transport Pilot and Certified Flight Instructor (Gold Seal), 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 aviation management and safety standards.

Human FactorsAviationFlight Instruction+13
Entomologist insect

DOUGLAS L. SEEMANN, BCE

Law Enforcement and Security Expert

Tucson, AZ42 years+ yrs★ 8.7

Douglas L. Seemann, BCE is an entomology and pest control expert specializing in forensic investigation and expert testimony for litigation involving pest management and entomological issues. With a career spanning pest control operations, regulatory advisory roles, and product development, he brings a comprehensive framework to analyzing entomological disputes and pest control practices. His work centers on investigating pest infestations, assessing pesticide application efficacy, and evaluating compliance with industry standards. Mr. Seemann has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to pest control, contamination, and pesticide application. His BS in Biology from the University of Connecticut, along with his Board Certified Entomologist designation, 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 pest infestations and pesticide applications.

contaminationPesticideTermiticide+31
Hospitality Management

Gary L Deel, PhD, JD, CLSD*, CHSP*, CHSE, CHE, CHIA, SHRM-CP, CFE

Kissimmee, FL★ 8.7

Gary L Deel, PhD, JD, CLSD*, CHSP*, CHSE, CHE, CHIA, SHRM-CP, CFE is a hospitality management expert specializing in legal compliance and risk management within the tourism and event sectors. With a career encompassing diverse roles in hospitality operations, legal practice, and academic leadership, he brings a multifaceted perspective to litigation work. His work centers on investigating operational failures, assessing compliance with industry standards, and evaluating whether negligence contributed to incidents. Mr. Deel has been retained in numerous expert witness and consulting engagements worldwide, involving cases related to hotels, resorts, casinos, and other hospitality venues. His Doctorate of Philosophy in Hospitality Administration, along with certifications such as Certified Fraud Examiner (CFE) and Certified Hotel Industry Analyst (CHIA), 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 hospitality operations and management practices.

Risk ManagementSecurity AdministrationLegal Compliance+2
Real Estate

Jeff Goldshine

Multifamily Real Estate Consultant, Expert Witness, CPM

Chapel Hill, NC42 years+ yrs★ 8.7

Jeff Goldshine, CPM is a multifamily real estate expert specializing in property management operations and asset management. With a career spanning multifamily property management, asset management, and financial analysis, he brings a strategic perspective to litigation work involving standards of care and risk management. His work centers on investigating property management practices, assessing compliance with industry standards, and evaluating whether operational deviations have impacted asset value. Mr. Goldshine has been retained in numerous expert witness and consulting engagements across the United States, involving multifamily property management, partnership disputes, and premises liability cases. His BA in Political Science from The George Washington University, along with his Certified Property Manager designation from the Institute of Real Estate Management, 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 property management and real estate operations.

Property ManagementAsset ManagementDue Diligence+11
Education & Schools

David Wolowitz

J.D.

Greenland, NH48 years+ yrs★ 8.7

David Wolowitz, J.D. is an Education & Schools expert specializing in school safety and educator misconduct litigation. With a career spanning legal practice, school safety, and educator misconduct, he brings a nuanced understanding of the complexities involved in school-related legal disputes. His work centers on investigating educator misconduct, assessing school safety protocols, and evaluating whether standard of care violations have occurred. Mr. Wolowitz has been retained in numerous expert witness and consulting engagements across the United States, involving cases of educator misconduct, school safety, and Title IX violations. His Juris Doctor from the University of Michigan, along with his licenses in Massachusetts and New Hampshire, 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 school safety and educator misconduct.

School Safety
Search Engine Optimization and Advertising

Jason McDonald

SEO, Google Ads, and Social Media Marketing Professional

San Francisco, CA20+ years+ yrs★ 8.7

Jason McDonald is an SEO, Google Ads, and social media marketing expert specializing in litigation research and trial testimony. With a career encompassing online media, teaching, and corporate training, he brings a multifaceted perspective to his litigation work. His work centers on investigating SEO practices, assessing Google Ads strategies, and evaluating social media marketing effectiveness. Mr. McDonald has been retained in numerous expert witness and consulting engagements across Federal and California Courts, involving SEO, Google Ads, and social media marketing disputes. His Bachelor of Arts in Russian Studies and Economics from Harvard University, along with his Masters and Ph.D. in Political Science (Economic Policy) from the University of California Berkeley, 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 online marketing practices.

Search Engine OptimizationGoogle AdsSocial Media Marketing
Forensic Accounting

RAND MARK MANASSE, CFE

Expert Witness — Forensic Accounting, Fraud Examination & Financial / Business Damages

New Rochelle, NY★ 8.7

RAND MARK MANASSE, CFE is a forensic accounting and fraud examination expert specializing in financial and business damages. With a career spanning finance, accounting, and operations leadership across diverse sectors such as private equity, turnaround, and renewable energy, he brings a multifaceted perspective to litigation work. His work centers on investigating financial statement fraud, assessing asset misappropriation, and evaluating internal controls failures. Mr. Manasse has been retained in numerous expert witness and consulting engagements across the United States, involving cases in industries such as renewable energy, private equity, and financial services. His MBA in Finance, along with his Certified Fraud Examiner (CFE) designation, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of financial damages in disputes involving breach of fiduciary duty and corporate governance.

Fraud ExaminationFinancial Damages AnalysisCorporate Governance+3
Environmental and Industrial Hygiene

Robin D. Franks

President & CEO

Houston, Texas38 years+ yrs★ 8.7

Robin D. Franks, P.G., CHMM, RSO is an Environmental and Industrial Hygiene expert specializing in environmental real property transactional and operational due diligence. With a career spanning environmental compliance, hazardous materials management, and industrial hygiene, she brings a comprehensive framework to litigation work involving complex environmental challenges. Her work centers on investigating environmental compliance, assessing hazardous materials management, and evaluating whether risk-based management practices have been effectively implemented. Ms. Franks has been retained in numerous expert witness and consulting engagements across the United States, involving environmental compliance, hazardous materials management, and industrial hygiene in industries such as oil and gas, manufacturing, and healthcare. Her Master of Science in Geology, along with certifications such as Certified Hazardous Materials Manager (CHMM), reinforce her ability to deliver objective, defensible analyses. She is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving environmental compliance and hazardous materials management.

Environmental Real Property Transactional & Operational Due DiligenceEnvironmental Compliance & Operational AuditEmergency Response Program Management for Hazardous Materials Releases+1
Meteorology

Christopher C. Hennon, Ph.D., CCM

Research and Consulting Meteorologist

Asheville, NC32 years+ yrs★ 8.7

Christopher C. Hennon, Ph.D., CCM is a meteorology expert specializing in forensic analysis of weather-related events. With a career encompassing atmospheric research, academic leadership, and consulting, he brings a multidisciplinary perspective to litigation work. His work centers on investigating severe weather events, assessing climatological data, and evaluating whether meteorological conditions contributed to incidents. Mr. Hennon has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to hurricanes, severe storms, and weather-related damages. His Ph.D. in Atmospheric Science, along with his Certified Consulting Meteorologist designation, 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 tropical cyclones, storm surges, and other severe weather phenomena.

Forensic Science
Meteorology

Bryan A. Mroczka

Certified Consulting Meteorologist / Forensic Meteorologist

Northville, MI★ 8.7

Bryan A. Mroczka, MS/CCM is a forensic meteorology expert specializing in weather event reconstruction and insurance claims. With a career encompassing roles in operational meteorology, research, and consulting, he brings a multifaceted perspective to litigation work. His work centers on investigating severe weather impacts, assessing meteorological data for accuracy, and evaluating whether conditions align with reported damages. Mr. Mroczka has been retained in numerous expert witness and consulting engagements across the United States, involving cases of hurricane damage, slip and fall incidents, and storm-related insurance claims. His Master of Science in Meteorology, along with his Certified Consulting Meteorologist (CCM) designation, 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 severe weather and related damages.

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