Marco Casari is registered under number 667 on the list of appraisers and experts in the following categories: air and inland waterway maritime activities and subcategories, floating vessels in general (construction, picketing, drydocking, painting commercial appraisal), breakdowns, hulls and engine apparatuses, and loss and damage resulting from maritime breakdowns.

Pre-purchase and post-purchase appraisal
The pre-purchase appraisal is an essential tool for those who are considering the purchase of a boat and wish to do so with full knowledge, avoiding unforeseen risks and costs that often emerge only after purchase. My role, as a registered nautical appraiser, is to provide an independent, unbiased and documented technical evaluation to protect the buyer.
During the survey, all major components of the vessel are analyzed: hull, structure, deck, mechanical apparatus, systems, and general state of preservation. The inspection is not limited to visual observation, but is supported by the use of nondestructive technical instrumentation, such as hygrometer and thickness gauge, indispensable tools for detecting any problems not immediately visible, such as the presence of moisture, seepage or structural variations.
The pre-purchase appraisal is not simply a list of defects, but a comprehensive technical evaluation that provides an understanding of the actual condition of the boat and the consistency between the actual condition and the asking price. This allows the buyer to approach the negotiation with objective data, renegotiate the value, or make an informed decision on whether or not to proceed with the purchase.
The result is a clear and understandable technical report, even for those outside the industry, designed to support an important choice with factual and verifiable information.
Facing a purchase without an appraisal means relying on informal impressions or evaluations. Approaching it with an appraisal means reducing risk, really knowing what you are buying, and investing with greater peace of mind.
Appraisals for marine damage and claims
Marine damage and claims appraisals provide a comprehensive, unbiased and documented technical assessment following damaging events involving valuable recreational boats and yachts. The service is intended for both private clients and insurance companies in need of a reliable, authoritative and truly defensible technical assessment.
The survey includes analysis of structural, mechanical, and aesthetic damage resulting from collisions, impacts, fires, flooding, breakdowns, and casualties of all kinds. The inspection is conducted directly on the unit, with particular attention to load-bearing structures, systems, materials, and finishes, including wood and composite materials, identifying both obvious and hidden or consequential damage.
The technical survey delves into the causes of the damage, assesses possible liability, and considers the effects over time on the safety, integrity, and value of the vessel. Each appraisal is supported by detailed photographic documentation, accurate technical description, reliable economic estimate of the damage, and indication of the correct method of restoration.
The expert report is prepared according to rigorous technical criteria and is suitable for use in insurance, legal and out-of-court settings. A service designed to provide technical certainty, reduce disputes, and ensure fair and transparent handling of the claim for both the boat owner and the insurance company.


Commercial and insurance value estimates
Commercial and insurance value appraisals aim to determine the true economic value of a vessel in an objective, documented and technically reliable manner. The service is intended for private clients, insurance companies, leasing and financial institutions, and anyone else who needs an official and defensible valuation.
Economic valuation may be required for purposes of sale or purchase, successions and inheritances, separations and litigation, nautical leases, financing, asset audits, and insurance policies, clearly distinguishing commercial value, insurable value, and, where necessary, replacement or new value.
The estimate is worked out through an in-depth analysis of the unit, considering type, model, year of construction, state of preservation, construction quality, materials, systems, engines, equipment and maintenance or refitting work carried out. Particular attention is paid to valuable and wooden boats, for which the value is closely related to the actual state of the structures and the quality of the interventions carried out.
The appraisal report is accompanied by photographic documentation, detailed technical description and transparent valuation criteria, and is written in a clear, rigorous manner consistent with the standards required in insurance, legal and financial matters. A service designed to provide certainty, reduce disputes and protect the economic value of the vessel in every decision-making context.
Party Technical Consultancy (PTC)
The Party Technical Consultancy (PTC) is a key tool for protecting one's interests in technical disputes, claims, contractual disputes or court proceedings involving a vessel.
As a Chartered Nautical Surveyor registered with the Chamber of Commerce's Roll of Surveyors and Experts, I work alongside the client - private, shipowner, company or law firm - providing qualified and independent technical support at every stage of the proceedings. The goal is to analyze the situation with technical rigor, verify the findings of the Court-appointed Technical Consultancy (CTU) and prepare timely, reasoned and documented observations.
CTP activities include: document analysis, on-board surveys, technical surveys, verification of structural or plant damage, assessment of construction or refitting defects, ascertainment of causes of claims, estimation of restoration costs, and preparation of detailed technical reports. Each paper is developed with clear technical language, expert methodology, and reference to current regulations and good marine industry practices.
I work on yachts, motor boats and wooden boats, with particular experience on Riva and Chris-Craft, intervening throughout the country and internationally.
Partisan Technical Advice is not only a technical support, but a strategic tool to ensure balance, transparency and protection in often complex contexts of significant economic value.


Assignments for Courts and Lawyers
Assignments for Courts and Attorneys involve expert activities performed as technical advisor in civil and extrajudicial proceedings involving valuable pleasure boats and yachts. The service is aimed at Judicial Authorities, lawyers, law firms and private parties in need of authoritative, impartial and rigorous technical support.
The activity includes assignments as a court-appointed Technical Consultant (CTU) and Party Technical Consultant (PTC), in disputes related to nautical claims, construction defects, defects in workmanship, structural and mechanical damage, economic evaluations, insurance litigation, purchase and sale and refitting contracts. Each assignment is carried out in accordance with the procedures, timeframes and procedures required by the Judicial Authority.
Technical analysis is based on direct inspections of the vessel, review of available documentation, and objective assessment of the facts, with emphasis on identifying causes, responsibilities, and technical and economic consequences. The expert reports are written in clear, technical language consistent with the criteria required in the judicial environment.
The expert report is structured to be understandable, accurate and technically unassailable, so that it is a valuable support to the Judge's decisions or the parties' defense strategy. A service designed to ensure reliability, independence and professional credibility in complex and sensitive litigation contexts.
Collaborations with Shipyards and Boat Brokers
Collaborations with boatyards and nautical brokers are aimed at providing qualified technical expert support in boat evaluation, verification and management activities. The service is aimed at boatyards, brokers and boat operators who need an independent and competent technical contact.
The activity includes pre- and post-intervention technical inspections, checks on the condition of the vessel, support in defining refitting and maintenance work, compliance checks, and economic evaluations to support sales negotiations. Expert input allows for greater transparency for the end customer, reducing disputes and misunderstandings.
Checks are carried out directly on the unit, with particular attention to structural aspects, systems, materials and finishes, including wood and composite materials. The technical analysis makes it possible to identify critical issues, discrepancies or necessary interventions, supporting shipyards and brokers in the proper and professional management of the vessel.
Technical reports are written in a clear, objective and documented manner, so that they are useful in both the operational and contractual phases. A service designed to enhance the work of shipyards and brokers, protect all parties involved, and ensure transparent, technically grounded transactions consistent with boating industry standards.


Specialization in vintage wooden boats
Specializing in vintage wooden boats offers highly qualified technical support for the evaluation, maintenance, restoration, and appraisal of historic and valuable boats. The service is aimed at private owners, collectors, specialized boatyards, and insurance companies that require specific expertise on classic boats.
The expert witness work focuses on major historic brands such as Riva, Chris Craft, Boesch, Colombo, and Comitti, but also extends to other vintage wooden boats. The analysis includes wooden structures, systems, finishes and original materials, with attention to construction flaws, deterioration, previous restoration work and compliance with traditional techniques. The evaluation considers both the current state of the boat and its historical, collector's, and commercial value, providing accurate indications for maintenance, restoration, or buying and selling.
Appraisals are accompanied by detailed photographic documentation, accurate technical descriptions and reliable economic estimates that can be used for insurance, market, legal or contractual purposes. Direct experience on wooden boats and knowledge of traditional materials guarantee objective, reliable and defensible valuations in any context, including international.
This service protects the historical and commercial value of vintage boats, supporting owners and operators in the proper, safe, and knowledgeable handling of any intervention, restoration, or transaction.
