Strategic capital solutions for commercial real estate and healthcare.

Healthcare
Senior Housing
CRE
Bridge, Mezzanine & Preferred Equity
Office, Retail & Industrial
Manufactured & Mobile Home Communities
Self-Storage
Pace Financing
FHA/HUD
CMBS
Hospitality
Fannie Mae & Freddie Mac
Multifamily

We partner with clients to structure and secure tailored financing solutions across commercial, healthcare, and specialty asset classes.

About Us

Capital Stack Advisors exists to empower clients with capital strategies that accelerate growth, optimize structures, and bring real estate visions to life.

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Our Mission

Capital Stack Advisors exists to empower clients with capital strategies that accelerate growth, optimize structures, and bring real estate visions to life.

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Who We Are

We are a boutique commercial mortgage banking and advisory firm specializing in customized debt and equity solutions. Our team brings strategic insight, financial rigor, and unmatched client service to every engagement, working collaboratively to simplify complex transactions.

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Our Approach

Client-First Strategy – We begin with your goals and design financing around your success.
Integrated Expertise – From appraisal through underwriting, negotiation, and closing, we remain your trusted advisor.
Long-Term Relationships – We cultivate deep lender partnerships to expand your capital options

Testimonials

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Capital Stack Advisors was literally a guiding light in our quest to get the perfect financing arrangement. With their personal touch and years of expertise, you’d be hard-pressed to find a more efficient way to secure funding. In addition, as a boutique firm, Capital Stack treated us with unparalleled customer service, always going above and beyond to ensure things were done correctly, and on schedule.

Illinois (HUD Express Lane)

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CSA helped us plan for what came after the acquisition before we even closed it. Their bridge strategy set us up for a successful HUD takeout, and their strategic guidance made the whole process feel refreshingly easy.

Connecticut (Bridge to HUD)

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As first time HUD borrowers, we had questions lots of them! Capital Stack Advisors guided us through the process with patience and a steady hand, managing everything from documentation to third-party coordination. Their involvement was essential to getting us across the finish line.

Philadelphia (Multifamily)

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Capital Stack Advisors set a high bar for execution and communication and cleared it! They introduced us to a new lender while maintaining the responsiveness we were used to, making the transition smooth and efficient.

Arizona (Self-Storage Portfolio)

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CSA treated our refinance like it was their own. They helped untangle our financials, navigated a more complex structure, and stayed closely involved from start to finish. The outcome opened new doors we didn’t think were possible.

New Mexico (Mobile Home Park)

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This transaction required careful timing and coordination, and Capital Stack Advisors handled the HUD process with precision. They kept us within regulatory thresholds while still hitting our financial goals, all with impressive attention to detail.

Staten Island (Assisted Living Facility)

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This was a complex, multi-facility refinance with a lot of moving parts, and Capital Stack Advisors kept everything organized from start to finish. Their ability to manage the details made a challenging process feel far more manageable.

Massachusetts (Skilled Nursing Portfolio)

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CSA helped us connect the dots on our turnaround and present it clearly to HUD. They stayed engaged through underwriting and helped secure financing that brought long-term stability to the asset.

Connecticut (Turnaround)

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Capital Stack Advisors made sure our specialized healthcare asset wasn’t treated like a generic deal. They helped educate the lender, kept the underwriting on track, and helped us build a strong new banking relationship.

New Jersey (Substance Abuse Treatment Facility)

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CSA helped us add C-PACE financing to our construction loan without turning the capital stack into a puzzle. They worked closely with our team and contractors to keep the structure clean and practical.

New York (C-PACE)

Meet

Our Team

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Shia Fishman

Shia Fishman is the CEO of Capital Stack Advisors, where he leads the firm’s strategic direction and advises clients on complex commercial real estate financing solutions, including senior debt, mezzanine financing, and structured capital. He works closely with sponsors and owners to deliver thoughtful, execution-driven capital strategies aligned with long-term objectives.

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Alex Ades

Alex joined Capital Stack Advisors in 2018 and is deeply involved in transaction execution from origination through post-closing. He has worked on financings ranging from $1 million to over $100 million across multiple asset classes, with a primary focus on HUD/FHA financing. Known for his hands-on approach, Alex works closely with third parties and municipal offices to keep transactions moving efficiently.

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Simon Ruskin

Simon Ruskin serves as the Operations Manager at Capital Stack Advisors, overseeing internal processes, systems, and operational workflows that support the firm’s advisory and transaction activities. He works closely with leadership to improve efficiency, ensure execution consistency, and support the delivery of high quality client service across all engagements.

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Marc Kassai

Marc Kassai is a Managing Director with over 20 years of experience in commercial real estate and structured finance, having been involved in transactions with a volume exceeding $500 million. He advises on complex capital structures across bank, private, bridge, construction, and agency executions, including Fannie Mae, Freddie Mac, and CMBS programs. Marc brings deep expertise in multifamily, HUD-insured financing, and behavioral health and healthcare-adjacent real estate.