Find the Right Expert for Every Case

Physician-Scientist and Professor Emeritus

James M Sonner, MD is a pharmacology and anesthesiology expert specializing in drug interactions, perioperative medication safety, and the identification of adverse drug reactions or toxic effects. With a career spanning chemistry, pharmacology, and clinical medicine, he brings a scientifically rigorous framework to litigation work involving complex pharmacological outcomes. His work centers on investigating drug interactions, assessing perioperative medication safety, and evaluating whether adverse drug reactions have occurred. Dr. Sonner has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to pharmacology of the nervous system and anesthesiology. His Doctor of Medicine from Harvard Medical School, along with certifications from the American Board of Anesthesiology and the Drug Enforcement Administration, 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 drug interactions and toxicology.

Professor of Pharmacy Administration

Michael T. Rupp, PhD, FAPhA is a pharmacy administration expert specializing in pharmaceutical economics and health care administration litigation. With a career spanning pharmacy operations, academic leadership, and policy development, he brings a comprehensive understanding of the pharmaceutical landscape to his litigation work. His work centers on investigating medication errors, assessing dispensing practices, and evaluating whether standards of practice have been met. Mr. Rupp has been retained in numerous expert witness and consulting engagements across the United States, involving community pharmacy operations, medication safety, and healthcare policy. His Ph.D. in Pharmaceutical Administration from The Ohio State University, along with his inactive pharmacist licenses in Kansas, Missouri, New Mexico, and Ohio, 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 pharmacy administration and medication dispensing practices.

Senior Vice President

Daniel B. Boring, CRE, MAI, ARA, ASA is a valuation and appraisal expert specializing in institutional investment-grade real estate and machinery and equipment. With a career spanning diverse sectors such as agribusiness, marine services, and natural resources, he brings a multifaceted perspective to litigation work. His work centers on investigating compliance with USPAP standards, assessing valuation methodologies, and evaluating whether industry-specific deviations have occurred. Mr. Boring has been retained in numerous expert witness and consulting engagements across the United States and internationally, involving complex real estate, agribusiness, and machinery valuation cases. His education from Washington State University and Pepperdine University, along with his MAI, ASA, and ARA designations, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of valuation and responsibility in disputes involving high-profile properties and equipment.

Director, Fire Practice Group

W. Andrew Asbell, IAAI-CFI, NAFI-CFEI/CVFI is a fire investigation expert specializing in origin and cause analysis of fires and explosions. With a career encompassing roles in municipal fire departments and private investigation, he brings a multifaceted perspective to litigation work. His work centers on investigating fire origins, assessing explosion causes, and evaluating liability in fire-related incidents. Mr. Asbell has been retained in numerous expert witness and consulting engagements across the Southeastern United States, involving industrial, commercial, and residential fire cases. His B.S. degree in Criminal Justice, along with certifications as a Certified Fire Investigator, Certified Fire and Explosion Investigator, and Certified Vehicle Fire 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 causation in disputes involving fire and explosion incidents.

Senior / Executive Director

Christopher D. Breder, MD PhD is a pharmaceutical research and regulation expert specializing in neurology and psychiatry litigation. With a career encompassing leadership roles in clinical development and regulatory affairs, he brings a strategic framework to his litigation work. His work centers on investigating regulatory compliance, assessing clinical trial protocols, and evaluating whether industry standards were met in drug development processes. Dr. Breder has been retained in numerous expert witness and consulting engagements across the United States, involving cases in the pharmaceutical and biotechnology industries. His Doctor of Philosophy in Neurobiology and Doctor of Medicine, along with his Certificate Program in Pharmacoepidemiology, reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of regulatory compliance and standard of care in disputes involving drug development and clinical research.

M.D., Ph.D., M.B.I.

David B. Ross, M.D., Ph.D., M.B.I. is a pharmaceutical regulation and infectious diseases expert specializing in drug safety, labeling, and post-marketing surveillance. With a career encompassing regulatory science, biomedical informatics, and infectious disease management, he brings a comprehensive regulatory framework to litigation involving pharmaceutical compliance and safety. His work centers on investigating regulatory adherence, assessing drug development processes, and evaluating whether industry standards have been met. Dr. Ross has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to FDA regulations, drug safety, and infectious diseases. His M.D. in Medicine, along with certifications as a Diplomate in Internal Medicine and Infectious Diseases, 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 pharmaceutical regulation and infectious disease management.

Consultant / Expert Witness

Scott A. DeFoe is a police procedures and use of force expert specializing in litigation involving law enforcement tactics and internal investigations. With a career encompassing diverse roles in law enforcement, security management, and consulting, he brings a multifaceted perspective to his litigation work. His work centers on investigating police conduct, assessing use of force incidents, and evaluating whether law enforcement actions align with established protocols. Mr. DeFoe has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to police procedures, security management, and premise liability. His Master of Legal Studies from Pepperdine Law School, along with certifications such as California Peace Officer Standards and Training (P.O.S.T.) and Certified California Criminal Defense 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 law enforcement and security practices.

Expert Witness

Gregory J. Cahanin is a fire and failure analysis expert specializing in origin and cause investigations. With a career encompassing fire protection engineering, code compliance, and forensic analysis, he brings a comprehensive understanding of fire dynamics and safety standards to litigation work. His work centers on investigating fire origins, assessing fire suppression system failures, and evaluating whether fire code violations contributed to incidents. Mr. Cahanin has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to kitchen fire suppression systems, fire sprinklers, and fire alarm failures. His M.P.A. in Organization & Management, along with certifications such as International Code Council Fire Inspector 1, 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 protection systems and code compliance.

MBA, CMF, SPHR, SHRM-SCP, CFLC

Bradford H. Taft, MBA, CMF, SPHR, SHRM-SCP, CFLC is an employment and vocational rehabilitation expert specializing in employment matters litigation. With a career spanning executive recruiting, outplacement, and career transition, he brings a multifaceted perspective to his litigation work. His work centers on investigating wrongful termination, assessing employability and earning capacity, and evaluating whether employment policies and procedures were adhered to. Mr. Taft has been retained in numerous expert witness and consulting engagements across the United States, involving wrongful termination, divorce, and workers' compensation cases. His Master of Business Administration in Communication, along with certifications such as Career Management Fellow (CMF) and Certified Forensic Litigation Consultant (CFLC), 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 vocational evaluation and labor market analysis.

Professional Land Surveyor, Forensic Animator

E. Steyn Visagie, Professional Land Surveyor, Forensic Animator, FAA Certified Drone Pilot is a forensic animation and scene reconstruction expert specializing in surveying, mapping, and spatial analysis for litigation. With a career spanning forensic animation, scene mapping, and spatial data visualization, he brings a comprehensive framework to analyzing complex accident and incident reconstructions. His work centers on investigating scene dynamics, assessing spatial data accuracy, and evaluating whether visual demonstratives align with factual evidence. Mr. Visagie has been retained in numerous expert witness and consulting engagements across California and Virginia, involving accident reconstructions, public sector surveying, and transportation incidents. His BSc. in Surveying from the University of Cape Town, along with his Professional Land Surveyor licenses in California and Virginia, 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 scene reconstruction and forensic animation.

Human Factors Consultant

Ellen Szubski, M.S., Ph.D., CXLT, CPSI, AHFP is a Human Factors Consultant specializing in premises liability and safety evaluations. With a career encompassing human factors analysis, safety compliance, and risk management, she brings a multifaceted perspective to litigation work. Her work centers on investigating slip, trip, and fall incidents, assessing vehicle and pedestrian crash dynamics, and evaluating whether OSHA standards were met in workplace injuries. Ms. Szubski has been retained in numerous expert witness and consulting engagements across the southeastern United States, involving cases related to premises liability, public playground incidents, and vehicle/pedestrian/bicycle crash investigations. Her Doctor of Philosophy in Human Factors Psychology, along with certifications such as Certified XL Tribometrist and Certified Playground Safety Inspector, 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 human factors and safety compliance.

Distinguished Employment Practices Expert

Laurie Chua, SHRM-SCP, SPHR-CA, SPHR, Certified Employee Retention Specialist, PHR, DDI Certified Training Facilitator is an Employment Practices Expert specializing in workplace discrimination and wrongful termination litigation. With a robust career spanning human resources management, compliance, and policy development, she brings a strategic and comprehensive framework to her litigation work. Her work centers on investigating disability accommodations, assessing harassment claims, and evaluating whether wage and hour compliance standards have been met. Ms. Chua has been retained in numerous expert witness and consulting engagements across California, involving cases of disability discrimination, sexual harassment, and wrongful termination. Her Bachelor of Business Administration in Human Resource Management and Labor Relations, along with certifications such as SHRM-SCP and SPHR-CA, 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 employment practices and compliance issues.

Forensic Consulting Engineer

Andrew Allocco, P.E. is a forensic consulting engineer expert specializing in construction litigation and insurance claims. With a career spanning forensic engineering, construction consulting, and insurance litigation, he brings a multifaceted perspective to his litigation work. His work centers on investigating construction defects, assessing insurance claims, and evaluating whether industry standards were met. Mr. Allocco has been retained in numerous expert witness and consulting engagements throughout Florida, involving construction defects, insurance disputes, and personal injury cases. His Bachelor of Science in Nuclear and Marine Engineering, along with certifications such as Florida Licensed Mold Assessor & Mold Remediator and FAA Part 107 Licensed Drone Pilot, 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 construction and insurance claims.

Senior Economist

Dr. Eric F. Forister, Ph.D. is an economics expert specializing in market definition, market power, and damages litigation. With a career encompassing diverse industries from commodities to luxuries, he brings a multifaceted analytical framework to his litigation work. His work centers on investigating market dynamics, assessing economic damages, and evaluating the implications of market power. Dr. Forister has been retained in numerous expert witness and consulting engagements across the United States, involving antitrust, intellectual property, consumer fraud, and breach-of-contract cases. His Ph.D. in Business Administration (Field: Economics) from Stanford Graduate School of Business, along with his B.S. in Mathematics/Economics from UCLA, 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 complex economic issues.

Certified Strength & Conditioning Specialist | Registered Holistic Nutritionist | Fitness & Biomechanics Expert

Nathane L. Jackson, BA, CSCS, RHN is a Fitness & Biomechanics Expert specializing in fitness facility liability, exercise biomechanics, and injury prevention standards. With a career spanning strength and conditioning coaching, holistic nutrition, and fitness facility management, he brings a multifaceted perspective to litigation work. His work centers on investigating fitness injury causation, assessing trainer negligence, and evaluating whether safety compliance standards were met. Mr. Jackson has been retained in numerous expert witness and consulting engagements across Canada and the United States, involving personal injury cases related to fitness instruction and facility operations. His Bachelor of Arts in Sociology, along with certifications such as Certified Strength & Conditioning Specialist and Registered Holistic Nutritionist, 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 exercise biomechanics and trainer conduct.

SPHR

Timothy C. Egan, SPHR is a Human Resources expert specializing in executive-level human resources leadership and litigation consulting. With a career spanning human resources, hospital administration, and labor relations, he brings a strategic and operational framework to analyzing complex HR disputes. His work centers on investigating employee relations issues, assessing compliance with labor laws, and evaluating whether HR practices align with industry standards. Mr. Egan has been retained in numerous expert witness and consulting engagements across FL, GA, MO, MS, NM, and TX, involving cases in healthcare, hospitals, and employee relations. His BA in History from Lake Forest College, along with certifications such as Senior Professional in Human Resources (SPHR), 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 human resources and labor relations.

Architect

Adam J. French, AIA, NCARB is a forensic architecture expert specializing in construction defects, premises liability, and property damage. With a career spanning design leadership, engineering coordination, and quality control, he brings a comprehensive architectural framework to litigation work. His work centers on investigating construction defects, assessing premises liability conditions, and evaluating whether code compliance issues have occurred. Mr. French has been retained in numerous expert witness and consulting engagements across multiple jurisdictions, involving construction defect, premises liability, and property damage cases in residential, commercial, and hospitality sectors. His Bachelor of Architecture degree from SCI-Arc, along with certifications from the National Council of Architectural Registration Boards and the Federal Aviation Administration, 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 building envelope and waterproofing systems.

Security Consultant

Elizabeth Dumbaugh, MS, CPP is a security and premises liability expert specializing in risk management and security management. With a career encompassing military leadership and consulting roles, she brings a strategic and operational perspective to her litigation work. Her work centers on investigating crime foreseeability, assessing reasonable care, and evaluating whether security measures meet industry standards. Ms. Dumbaugh has been retained in numerous expert witness and consulting engagements across the United States, involving commercial properties such as hotels, retail spaces, and entertainment venues. Her M.S. in Criminal Justice from Florida State University, along with her Certified Protection Professional and Crime Prevention Professional certifications, 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 inadequate or negligent security.