Find the Right Expert for Every Case

Professional Engineer

Mr. Dabrowski is a Professional Engineer with over 45 years of experience in the construction and construction-related industries. Of these, twenty years have been (part time) devoted to performing numerous forensic engineering assignments for insurance companies and sureties. Further, eight of them have been spent (part time) providing lump sum construction services to the federal government acting in the capacity of a General Contractor. As a construction expert I’ve provided construction litigation, commercial arbitration support, commercial mediation support and construction claims services for sureties and / or their attorneys for over thirty years (part time).

Consultant Forensic Mechanical Engineer

Jeffrey John Mason BEng(Hons) CEng MIMechE is a forensic mechanical engineering expert specializing in commercial disputes and product safety litigation. With a career spanning aerospace, automotive, and oil and gas industries, he brings a multidisciplinary engineering perspective to his litigation work. His work centers on investigating equipment failures, assessing compliance with safety standards, and evaluating whether mechanical systems meet regulatory requirements. Mr. Mason has been retained in numerous expert witness and consulting engagements across the UK, involving commercial disputes, work-related injuries, and product safety cases. His BEng(Hons) in Aeronautical Engineering, along with IMechE chartership and the National General Certificate in Health and Safety (NEBOSH NG1&2), 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 mechanical failures and safety compliance.

Senior Associate

Mr. Stephen Brough is a forensic engineering expert specializing in fire investigation, engineering failures, and explosion analysis. With a career that encompasses extensive experience in materials engineering and plumbing systems, he brings a multidisciplinary approach to his litigation work. His work centers on investigating escapes of water, assessing fire origins, and evaluating whether engineering failures contributed to incidents. Mr. Brough has been retained in numerous expert witness and consulting engagements across Europe, involving cases related to building fires, oil and gas incidents, and mechanical engineering failures. His BEng (Hons) DIS in Materials Engineering, along with his City and Guilds Plumbing qualification and listing on the Bond Solon Expert Witness Register, 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 explosions and metallurgical failures.

Senior Associate

Mr. Richard Baker, MEng (Hons), Chartered Mechanical Engineer is a forensic road collision investigation expert specializing in digital forensics, photogrammetry, and video analysis. With a career encompassing mechanical engineering and collision reconstruction, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating digital evidence, assessing mechanical failures, and evaluating whether industry standards were met in vehicle examinations. Mr. Baker has been retained in numerous expert witness and consulting engagements across the UK, involving complex collision reconstruction and vehicle examination cases. His MEng (Hons) in Mechanical Engineering, along with the Cardiff University Law School Bond Solon Expert Witness Certificate and UCPD Certificate in Forensic Road Collision Investigation, 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 forensic road collision investigations.

Emeritus Professor of Engineering

James M. Miller, P.E., Ph.D. is a workplace safety and accident reconstruction expert specializing in OSHA compliance, machine guarding, and vehicle accident analysis. With a career spanning industrial engineering, human factors, and regulatory safety standards, he brings a comprehensive framework to litigation involving workplace safety and accident causation. His work centers on investigating OSHA compliance, assessing machine guarding and entanglement risks, and evaluating vehicle accident reconstructions. Mr. Miller has been retained in numerous expert witness and consulting engagements across the United States, involving workplace safety, vehicle accidents, and product safety cases. His Ph.D. in Industrial Engineering, along with his Professional Engineer registration in Ohio and Idaho, 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 safety management, accident reconstruction, and regulatory compliance.

Expert Witness

Jacob Sharony, Ph.D., MBA is a telecommunications and wireless networks expert specializing in mobile and wireless technology litigation. With a career spanning mobile devices, data capture, and sensing technologies, he brings a strategic ICT framework to his litigation work. His work centers on investigating wireless communication protocols, assessing mobile data communication systems, and evaluating whether telecommunications standards have been met. Mr. Sharony has been retained in numerous expert witness and consulting engagements across the United States, involving telecommunications networks, patent portfolio evaluations, and wireless communication disputes. His Ph.D. in Electrical Engineering from Columbia University, along with his MBA from Tel Aviv University, 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 wireless technologies and network standards.

Stephen C. Tarbox, PE is a structural engineering expert specializing in construction management and forensic engineering. With a career spanning engineering, design, and construction consultation for diverse commercial and industrial projects, he brings a multidisciplinary perspective to litigation work. His work centers on investigating structural failures, assessing compliance with engineering standards, and evaluating whether construction practices align with industry norms. Mr. Tarbox has been retained in numerous expert witness and consulting engagements across New Hampshire, Vermont, and Massachusetts, involving commercial and industrial building projects, bridge design, and offshore platform engineering. His MS in Civil Engineering (Structures) from Rensselaer Polytechnic Institute, along with his professional engineering licenses in NH, VT, and MA, 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.

Mechanical Eng. Construction Defect Expert Witness

Scott Calkins, PE is a Mechanical Engineering Construction Defect expert specializing in construction defect litigation. With a career encompassing HVAC systems, power and process piping, and compliance with hazardous occupancy standards, he brings a comprehensive technical framework to his litigation work. His work centers on investigating HVAC and refrigeration systems, assessing compliance with codes and standards, and evaluating whether the standard of care in design and construction was met. Mr. Calkins has been retained in numerous expert witness and consulting engagements across various industries, involving HVAC systems, plumbing systems, and cleanrooms for advanced technology industries. His BSME from Northern Arizona University, along with his Professional Mechanical Engineer certification and NCEES 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 standard of care in disputes involving mechanical engineering and construction defects.

Senior Consultant

Donnavan (Don) Halimunanda, M.S., B.S., P.E. is a failure analysis and mechanical engineering expert specializing in forensic engineering and product assessments. With a career spanning forensic engineering, product assessments, and mechanical failure investigations, he brings a comprehensive framework to litigation work involving complex engineering disputes. His work centers on investigating defects that result in injuries and fatalities, assessing heavy equipment performance issues, and evaluating whether corrosion or fatigue contributed to material failures. Mr. Halimunanda has been retained in numerous expert witness and consulting engagements across the southeastern United States, involving industrial accidents and product liability cases. His M.S. in Mechanical Engineering, along with his Professional Engineer licenses in Alabama, Georgia, Tennessee, North Carolina, and South Carolina, 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 mechanical failures and engineering defects.

MD, MPH

With extensive expertise in occupational medicine, this expert specializes in medical surveillance and fitness for duty evaluations related to exposure to heavy metals, organic solvents, and other toxins. They have managed drug and alcohol testing programs and conducted independent medical evaluations for insurers and state agencies, focusing on cause of loss and damage assessment in work-related injuries and illnesses. Their experience spans multiple states, providing consulting services to corporations, attorneys, and federal agencies, ensuring compliance and safety in various industrial settings.

New York State Licensed Land Surveyor

Frank S. Ferrantello, PLS is a Land Surveying and Civil Engineering expert specializing in boundary disputes, zoning and land use planning, and accident site mapping. With a career encompassing diverse projects in land surveying and civil engineering, he brings a comprehensive understanding of land use regulations and site planning to his litigation work. His work centers on investigating boundary discrepancies, assessing zoning compliance, and evaluating whether site conditions meet professional standards. Mr. Ferrantello has been retained in numerous expert witness and consulting engagements across New York State, involving cases related to land surveying, civil engineering, and land use planning. His education in Civil Engineering/Land Use Planning from Hofstra University, along with his New York State Licensed Land Surveyor 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 responsibility in disputes involving land boundaries, zoning issues, and site conditions.

Expert Witness

David C. Gross, PhD, PE is a biomedical engineering expert specializing in intellectual property litigation. With a career encompassing medical devices, failure analysis, and regulatory compliance, he brings a multidisciplinary perspective to his litigation work. His work centers on investigating product failures, assessing compliance with regulatory standards, and evaluating whether design defects contributed to adverse outcomes. Mr. Gross has been retained in numerous expert witness and consulting engagements across the United States, involving medical device failures, products liability, and intellectual property disputes. His PhD in Biomedical Engineering, along with his status as a Licensed Professional Engineer, 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 medical devices and related technologies.

Construction Expert

John C. Petkovich is a construction expert specializing in plumbing, excavating, and complex mechanical systems litigation. With a career spanning hands-on construction work, leadership roles, and strategic innovation, he brings a practical and entrepreneurial perspective to his litigation work. His work centers on investigating construction defects, assessing compliance with building codes, and evaluating whether industry standards were met in complex construction projects. Mr. Petkovich has been retained in numerous expert witness and consulting engagements across Arizona and Colorado, involving residential, commercial, and service-related disputes. His extensive experience in the construction industry, along with his contractor licenses in AZ and ID, 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 high-pressure systems, underground infrastructure, and advanced plumbing installations.

Principal and Founder

William R. Acorn, PE, DFE, FASHRAE, CFLC is a consulting mechanical engineer expert specializing in the built environment. With a career encompassing project management, forensic analysis, and code compliance, he brings a multifaceted perspective to litigation work. His work centers on investigating mechanical system failures, assessing code compliance, and evaluating whether design deviations contributed to operational issues. Mr. Acorn has been retained in numerous expert witness and consulting engagements both domestically and internationally, involving complex project design, construction, and operational issues in industries such as semiconductor manufacturing and healthcare facilities. His BSME in Mechanical Engineering from the University of Arizona, along with certifications such as Professional Mechanical Engineer and Certified Forensic Litigation 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 causation in disputes involving mechanical systems and code compliance.

Expert Witness

Omair M. Siddiqui, MSc. is an accident reconstruction expert specializing in automotive engineering and simulation. With a career encompassing forensic engineering, autonomous vehicle safety, and advanced simulation techniques, he brings a multidisciplinary approach to litigation work. His work centers on investigating collision causation, assessing vehicle dynamics, and evaluating whether industry standards were met in accident scenarios. Mr. Siddiqui has been retained in numerous expert witness and consulting engagements across the United States, involving cases related to autonomous vehicles, pedestrian collisions, and vehicle dynamics. His MSc. in Mechanical Engineering, along with his SAE Certified Accident Reconstructionist credential, 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 accident reconstruction and vehicle safety systems.

Construction Defect Expert Witness

Kier Gregory Cotton is a construction defect expert witness specializing in construction litigation. With a career spanning construction methodologies, project sequencing, and practical application, he brings a comprehensive understanding of construction processes to his litigation work. His work centers on investigating construction defects, assessing compliance with building codes, and evaluating whether construction practices meet industry standards. Mr. Cotton has been retained in numerous expert witness and consulting engagements across California, involving residential and commercial construction cases. His traditional trade apprenticeship, along with certifications in plumbing, electrical work, and carpentry, 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 defects and compliance issues.

Senior Engineer and Principal

Jason Bondurant, PE, RRC is a construction defects expert specializing in forensic investigations of building envelope failures. With a career spanning civil engineering, construction management, and quality assurance, he brings a comprehensive framework to litigation work involving complex construction issues. His work centers on investigating building envelope failures, assessing repair plans and specifications, and evaluating whether construction management practices meet industry standards. Mr. Bondurant has been retained in numerous expert witness and consulting engagements across the southeastern United States, involving construction defects and civil engineering cases. His Bachelor of Science in Civil Engineering from the University of Florida, along with his Registered Roof Consultant (RRC) 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 responsibility in disputes involving building envelope failures and construction defects.

Construction Claims and Forensic Analysis Expert

Rosa Loloee, Registered Professional Engineer is a construction claims and forensic analysis expert specializing in construction claims and contract disputes. With a career encompassing construction engineering, forensic scheduling, and public infrastructure projects, she brings a comprehensive analytical framework to litigation work. Her work centers on investigating delay analysis, assessing cost escalation, and evaluating whether design errors and omissions have occurred. Ms. Loloee has been retained in numerous expert witness and consulting engagements across California, involving highway projects, design-build conflicts, and Caltrans claims. Her Bachelor of Science in Civil Engineering, along with her Registered Professional Engineer certification, 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 unforeseen condition claims and utility coordination disputes.