Boat / Ship Construction / Repair Expert Witnesses: 5

Captain Arlen Leiner, MMS, AMS is an Accredited Marine Surveyor, Master Marine Surveyor. He has an engineering degree from the University of Toledo, with a Masters's degree in Mechanical Engineering and a subcategory of Marine Combustion Engines. He is trained for MARPOL, SOLAS, and IMO. 

Capt. Leiner has performed Marine Surveys and Inspections in Florida, including Tampa, St. Petersburg, West Palm Beach, Fort Lauderdale, nation, and worldwide( including Europe, the Caribbean, Mexico, Central America, South America, and Asia a. He is considered an expert in the marine inspection industry. 

Litigation Support - In his 52 years of surveying boats and other watercraft, Capt. Leiner has provided expert witness testimony in marine litigation involving vessels of any size or type. This includes numerous depositions and trials in state and federal courts, with each damage and casualty survey prepared so that findings can be defended in a court of law. 

Capt. Leiner is qualified to analyze evidence, form a professional opinion, and communicate his findings to a jury. His services are necessary for litigation in many situations, requiring an expert evaluation of any vessel's value or seaworthiness. These situations can include:

View Captain Leiner's Consulting Profile.

Gregory T. Davis is an internationally recognized expert in Marine Forensics and Marine Survey. He has over 40 years of experience as a Professional Marine Surveyor and Investigator, and is the founder and President of Davis & Company, Ltd. the nation's leading marine survey and loss investigation firm.

Mr. Davis was formerly Senior Managing Consultant with Engineering Systems Inc. (ESi) and Director of the Marine Practice Group. His firm, Davis Marine Consulting Associates, LLC, formed in June of 2018, offers professional services to a wide variety of clients, for investigations related to Marine Accidents that range from recreational and commercial watercraft design and loss evaluations to marina operations. 

Mr. Davis is a Fire and Explosion Investigator certified by the National Association of Fire Investigators, and a Marine Surveyor certified by the National Association of Marine Surveyors, Inc., He is a ‘Special Expert’ on NFPA 303 “Marinas and Boatyards,” and is NTSB training certified in Marine Accident Investigation. 

He is a member of the Society of Naval Architects and Marine Engineers (SNAME), serving on their O-45 Fire Protection and Safety Panel and is Chair of the MF10 Small Boat Forensics Panel. He is a member of the American Boat and Yacht Council (ABYC), having served on their Board of Directors and is currently serving on the Technical Board.

Mr. Davis has been recognized by Marquis Publications with their “Albert Nelson Marquis Lifetime Achievement Award” and by Lawyer Monthly magazine within their “2019 Expert Awards”.

Litigation Support - Mr. Davis offers comprehensive, project specific expert witness services to help identify project goals and issues. His service are available to attorneys representing plaintiff and defendant. General areas of specialization include: 

• Marine Forensics and Marine Survey
• Marine Accident Investigation and Reconstruction
• Failure Analysis, Safety Assessments, and Risk Analysis
• Marine Fire and Explosion Origin and Cause

Specific Areas of Expertise:

Gerald (Gerry) Nielsen, PMP,  founder of Ocean Ridge Maritime, is a Project Management Professional with over 35 years of experience in the Commercial Maritime, Offshore, and Cruise Industries. Mr. Nielsen serves as an Expert Witness, Consultant, Project Manager, Surveyor, and Auditor for the Maritime and Offshore Industries. 

A Project Management Professional (PMP) certification combined with a background that includes a USCG Chief Engineers license and experience in ISM/ISO Auditing, Marine Surveying, and Emergency Response, Mr. Nielsen provides professional and personalized service and support when  needed.  

Past Positions Include: 

• Rig Assurance, Preservation (Stacking), and Reactivations - Transocean Offshore Drilling
• Global Consulting Operations (VP) - ABS Nautical Systems
• Maritime Audit Services (Director) - Carnival Corporation
• Environmental and Safety Management (Director) - Cunard Line Limited
• Designated Person Ashore - Cunard Line and Seabourn Cruise Line
• New Construction Surveyor - American Bureau of Shipping
• ISM / ISO Auditor - American Bureau of Shipping
• Shipboard Engineer - Exxon Shipping Company and Global Marine Drilling

Litigation Support: Since the Exxon Valdez incident and response, through development of DOJ mandated Compliance Programs, to conducting ECP Audits as Third Party Auditor, Mr. Nielsen has been providing consulting services related to litigation.  In recent years, Ocean Ridge Maritime has been engaged for Jones Act Injury Cases, Regulatory (Environmental) Compliance Audits, Technical Opinions related to Oil Spill damages, and MARPOL Compliance.

Areas of Expertise:

View Ocean Ridge Maritime's Consulting Profile.

POWERPLANT Specialists, LLC., (PPC) is a technical services company providing highly specialized support services for Industrial Power Generation Systems, Cogeneration and Combined Cycle Power Plants. PPC specializes in Design, Performance, Forensics, Construction, Design Defects, Cost Analysis for Lost Operations, Maintenance, and Repair. PPC has extensive international experience and is OSHA Lockout / Tagout Certified. Areas of Expertise

• Power Generation
• Marine Propulsion - Conventional / Alternative Fueled Systems
• Microturbines
• Boilers
• Industrial Gas Turbines
• Diesel Engines
• Cogeneration
• Geothermal
• Landfill
• Digester Gas
• Wind and Solar Powered Generation Systems

George Zeitler, MSc, has over 30 years of experience in the Marine Industry in various regulatory, management, and consulting roles. He is an Accredited Marine Surveyor (Y&SC) by the Society of Accredited Marine Surveyors and a Member of the International Institute of Marine Surveying.

Background Experience - Mr. Zeitler served 18 years as a USCG Marine Inspector / Casualty Investigator, and 7 years as a Class Society principal surveyor (DNV).  He then spent 1 year as VP of Operations for a niche cruise line. Mr. Zeitler went on to serve 5 years as a technical consultant for various segments of the marine industry, including 2 years as third party environmental auditor for criminal pollution cases. He has been an Accredited Yacht and Small Craft Surveyor for over 15 years. 

In 2002, Mr. Zeitler formed Zeitler Marine Services (ZMS), using his experience and knowledge to offer condition and valuation (pre-purchase and insurance) and damage survey services to the yachting and recreational boating communities in south Florida. He is currently the Director of the Chapman School of Seamanship Yacht and Small Craft survey course.

Litigation Support - Mr. Zeitler uses his vast experience verifying Compliance with Applicable Maritime Laws / Regulations through on site surveys and audits of client's vessels. His years of operational and regulatory enforcement help provide clients with a unique perspective that is key in identifying vulnerabilities onboard vessels as well as gaps in policies and procedures. He functions as a Court Appointed Monitor in situations where vessel operators are negotiating a plea agreement for a DOJ-approved Environmental Compliance Programs.

Areas of Expertise:

• Vessel Design and Construction
• Vessel Compliance with International and US Laws and Regulations
• Compliance with Federal and Voluntary (ABYC) Standards for Yachts and Small Craft
• Casualty Investigation
• Vessel Operations
• Cruise Ship Management, Operation, and Safety
• Environmental Compliance and Auditing