Cost Segregation Study
Engineering-based analysis that reclassifies mobile home park assets—roads, utility hookups, fencing, and site improvements into 5, 7, or 15-year depreciation schedules, delivering average first-year savings of $171,243.
Mobile home parks present unique depreciation opportunities that most investors leave on the table. Seneca Cost Segregation's engineering-based studies identify and reclassify park infrastructure, utility hookups, and site improvements into 5, 7, and 15-year schedules unlocking front-loaded tax savings that average $171,243 in year one and fuel your next acquisition faster.

Comprehensive cost segregation solutions tailored to mobile home park owners seeking maximum depreciation benefits and IRS-compliant tax savings.
Engineering-based analysis that reclassifies mobile home park assets—roads, utility hookups, fencing, and site improvements into 5, 7, or 15-year depreciation schedules, delivering average first-year savings of $171,243.
Recover missed depreciation on mobile home parks purchased or constructed up to 15 years ago. Using IRS Form 3115, all unclaimed deductions are captured in a single tax year without amending prior returns.
Complete your mobile home park inspection via a convenient 30–45 minute video call. No travel required, faster 2–3 week turnaround, and lower overall study costs compared to traditional on-site visits.
Every study includes Seneca's AuditDefense guarantee at no extra charge. If your mobile home park study is ever audited, our specialists handle all IRS communications for the entire duration of your ownership.
Post-study implementation support ensures your CPA can seamlessly integrate depreciation schedules and Form 3115 filings into your tax returns, with our team available to answer technical questions throughout.
Need your mobile home park study completed before a tax deadline? Our expedited service delivers a fully engineered report in as little as one week, prioritized to meet your specific timing requirements.

We assess your mobile home park's eligibility, analyze the depreciable basis across land improvements, utility infrastructure, and structures, and provide a transparent preliminary savings estimate and ROI projection at no cost or obligation.
See how mobile home park owners across the country have accelerated their cash flow with Seneca's engineering-based studies.
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
Mobile home park investors trust Seneca because we combine engineering precision, real estate operator experience, and ironclad IRS compliance in every study.
Our engineers understand mobile home park-specific assets—pad sites, utility pedestals, roads, maximizing every reclassification.
With engineers deployed across all 50 states, we serve MHP owners in every market, from rural communities to suburban corridors.
Over 10,200 completed studies and a 95% client referral rate reflect the consistent, measurable results we deliver.
Every study includes lifetime IRS audit defense at no extra charge backed by a money-back guarantee if a material issue arises.
Founded by real estate investors who have been in your shoes.

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
Yes. The manufactured structures within a mobile home park particularly those classified as personal property rather than real property can qualify for bonus depreciation. Site improvements such as utility hookups, pad infrastructure, internal roads, and fencing are often reclassified into 5, 7, or 15-year property through a cost segregation study, making them eligible for accelerated or bonus depreciation deductions in the year they are placed in service.
Speak with a cost segregation specialist for a free, no-obligation consultation tailored to your park.
Seneca Cost Segregation serves mobile home park owners across all 50 states with virtual and on-site study options.
All 50 States
Service Area
10,200+
Studies Completed
2–4 Weeks
Typical Turnaround
Our engineers are ready to assess your park anywhere in the country virtually or on-site.
Certified Cost Segregation Professional credential from the ASCSP.
Perfect five-star average rating from satisfied clients nationwide.
Proudly veteran-owned, reflecting integrity and disciplined service delivery.
Complete the form below to receive a free, no-obligation savings estimate. Our engineering team will review your park's details and show you exactly how much you can save in year one typically within 24 hours.
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.