Marina Cost Segregation Study
A full engineering-based analysis of your marina property—docks, boathouses, fuel stations, and more reclassifying assets into 5, 7, or 15-year depreciation schedules to unlock maximum first-year tax deductions.
Marina owners face unique depreciation challenges from dock systems and fuel stations to boathouses and waterfront structures. Seneca Cost Segregation's engineering-based studies reclassify marina assets into shorter depreciation schedules, unlocking significant first-year tax savings. Discover how marina property owners across all 50 states are legally reducing their tax burden and reinvesting faster with our proven cost segregation expertise.

Comprehensive cost segregation solutions designed to maximize tax savings for marina property owners nationwide.
A full engineering-based analysis of your marina property—docks, boathouses, fuel stations, and more reclassifying assets into 5, 7, or 15-year depreciation schedules to unlock maximum first-year tax deductions.
Already own your marina? Claim missed depreciation from up to 15 prior years in a single tax year using IRS Form 3115, no amended returns required. Full engineering analysis and audit defense included.
A convenient 30–45 minute video call inspection of your marina facilities, enabling complete component identification and classification without costly on-site visits and with a faster 2–3 week turnaround.
Every marina cost segregation study includes Seneca AuditDefense at no additional charge covering all audit-related IRS communications and documentation for the entire duration of your property ownership.
Post-study support for your CPA or tax professional to seamlessly implement depreciation schedules into current or prior-year tax returns, ensuring your marina tax savings are fully realized.
Beyond cost segregation, Seneca identifies additional tax-saving opportunities across your marina portfolio, partnerships, and business assets at no extra charge to help you keep more of what you earn.

We assess your marina property's eligibility, evaluate depreciable assets from boat slips and bulkheads to fuel docks and utility systems and provide a transparent preliminary savings estimate and ROI projection at no cost to you.
See how marina property owners are saving hundreds of thousands in taxes with Seneca Cost Segregation.
Over 10,200+ engineered cost segregation studies completed across the United States. Average first-year tax deduction: $171,243
Studies Completed
Avg Tax Savings
Partners
Marina properties have unique and complex asset profiles our engineering expertise ensures every depreciable component is identified and maximized.
Our engineers understand marina-specific assets—docks, boathouses, seawalls, and utilities ensuring no depreciation opportunity is missed.
Licensed engineers deployed across all 50 states serve marina owners from coastal harbors to inland waterways with equal precision.
Every study includes our iron-clad IRS audit defense at no extra cost protecting your marina investment for as long as you own it.
Over 10,200 studies completed with an average first-year deduction of $171,243 and a 95% client referral rate nationwide.
Real estate investors and engineers who understand your property inside and out.

Co-Founder and CEO
Dylan Scandalios is an active investor in multi-family properties in the Pacific Northwest and a recognized Cost Segregation Expert. Before founding Seneca Cost Segregation, Dylan closed millions of dollars in business for both public and private companies along the West Coast, developing deep expertise in real estate finance and tax strategy. As CEO, Dylan has helped thousands of real estate investors including office building owners save millions on their federal taxes through engineering-based cost segregation studies. His hands-on investment background means he approaches every client engagement with the perspective of an investor, not just a service provider. Under his leadership, Seneca has completed over 10,200 studies nationwide and achieved a 95% client referral rate.

Co-Founder
Paul Spies is a Marine Corps Sergeant who brings over 8 years of hands-on expertise in real estate construction to Seneca Cost Segregation. As a Principal Broker and Licensed Contractor, Paul successfully flipped over 150 homes in just four years and led ground-up multi-family development projects across the country. Having leveraged cost segregation personally since 2018 to maximize returns on his own office and residential properties, Paul co-founded Seneca to make the same powerful tax strategy accessible to investors nationwide at an affordable price point and delivered on time. His construction background gives Seneca a unique engineering advantage when analyzing complex office building components and systems.

Chairman
Howard Hirsch serves as Chairman of Seneca Cost Segregation, providing executive leadership and strategic oversight to the firm's continued national expansion. With deep experience in financial services and real estate advisory, Howard helps guide Seneca's direction as it scales its engineering-based cost segregation services to property owners across all 50 states, including California's dynamic real estate market. His leadership ensures the company maintains its commitment to technical excellence, client satisfaction, and IRS-compliant study delivery that protects clients through every phase of property ownership.

President/Treasurer
Harry Papp serves as President and Treasurer of Seneca Cost Segregation, overseeing the company's operational and financial integrity. His dual role ensures that client investments in cost segregation studies generate maximum ROI through rigorous financial management and disciplined operational processes. Harry's leadership directly supports Seneca's ability to deliver studies on time and within budget a standard that has helped the firm achieve a 95% client referral rate and an average first-year deduction of $171,243 for property owners across California and the rest of the nation.

Merle Rosskam

CEO
Marina properties contain numerous short-life assets that qualify for accelerated depreciation, including boat docks and slips, floating docks, bulkheads, seawalls, fuel dispensing systems, electrical systems serving marina operations, lighting, security systems, paving, fencing, and landscaping. Structural building components like boathouses, repair facilities, and retail buildings are also analyzed and partially reclassified where eligible.
Speak with one of our cost segregation specialists for a free, no-obligation consultation.
Seneca Cost Segregation serves marina property owners across every state in the U.S. with on-site and virtual study options.
All 50 States
Service Area
10,200+
Studies Completed
95%
Client Referral Rate
We serve marina owners in all 50 states, virtually or on-site, on your schedule.
Certified Cost Segregation Professional credential from ASCSP
Perfect client satisfaction rating from marina and real estate owners nationwide
Proudly veteran-owned and operated with military-grade commitment to clients
Tell us about your marina property and we'll provide a free preliminary savings estimate and ROI analysis no obligation, no upfront cost. Most marina owners are surprised by how much they can save.
For immediate assistance, feel free to give us a direct call at +1 530-797-6539. You can also send us a quick email at info@senecacostseg.com.
For immediate assistance, feel free to give us a direct call at +1 530-797-6539. You can also send us a quick email at info@senecacostseg.com.