Years Finance Experience
Capital Raised for Public Companies
Units Under Advisory
Investors Served
Most multifamily investors finance properties one deal at a time. The investors who scale fastest finance their portfolio strategically.
Your Capital Quarterback
Founded by Gary Mascitis, Jr., a 23-year Wall Street veteran who helped raise over $200 billion for public companies, GSM Commercial Capital is a boutique capital advisory firm that serves as the strategic financing partner for multifamily investors.
The one person on your team who sees the entire field and calls the right play. We bring institutional-grade financial engineering to investors who think at the portfolio level — not just the next transaction.
Founder & Principal
Gary Mascitis, Jr.
23 years Wall Street · $200B+ raised
How We Structure Capital for Scaling Investors
Not loan programs. Not rate sheets. Strategy categories — designed to solve the structural capital problems that slow portfolio growth.
Portfolio Capital Strategy
Analyze existing loans, maturities, leverage, and equity positions to design an optimized capital structure across your entire portfolio.
Learn moreEquity Unlock & Refinancing
Turn trapped equity into deployable capital for acquisitions, development, or portfolio expansion — not just another refinance.
Learn moreAcquisition Capital Strategy
Structure financing solutions that support long-term portfolio growth across agency, bank, DSCR, and private capital channels — not just one transaction.
Learn moreTwo Types of Multifamily Investors We Work With
Whether you're scaling your first portfolio or structuring capital across hundreds of units, we meet investors at the stage where capital strategy becomes critical.
GSM Capital Advisory
For established multifamily operators ready to think at the portfolio level. Capital stack restructuring, portfolio refinancing, and strategic advisory from a team led by a 23-year Wall Street veteran who helped raise $200B+ for public companies.
Beyond Brrrr
Built the portfolio, hit the wall? If you've used the BRRRR strategy to accumulate 1–30 units but feel stuck — trapped equity, rate confusion, unclear next steps — this program is for you.
Trusted by Multifamily Investors Nationwide
"Gary has effectively served as our de facto CFO, acting as a direct lender when appropriate and a strategic relationship manager when projects require external banking or agency solutions. Delegating this critical function to Gary allows me to concentrate on my core competency — identifying and executing value-add projects."
Joe Colasuonno
Full-Time Real Estate Developer
600+ Units
"My collaboration with Gary since 2017 has been transformative for my real estate business. Prior to our engagement, I lacked meaningful lender relationships, felt perpetually cash-constrained despite significant equity. Gary is more than a lender or mortgage broker; he is a true capital strategist."
Joel Pena
Full-Time Real Estate Investor
~100 Units
"We had the good fortune to be introduced to Gary in 2020 and it has changed our trajectory in real estate investing. Gary is a true financing partner and will quickly provide us with investment guidance and the most appropriate financing solution with our best interests at heart."
Julius and Frank
Part-Time Real Estate Investors
~100 Units
Sound Familiar?
The Capital Problems That Slow Portfolio Growth
You have significant equity locked in properties — but no clear strategy to redeploy it.
Your loans are a patchwork of different terms, rates, and maturities with no unified structure.
You're spending more time navigating lender relationships than executing your investment thesis.
You know you should refinance — but you're unsure whether the timing, structure, or lender is right.
You're ready to acquire, but your current capital structure can't support the next deal.
If even one of these applies, your portfolio is leaving capital on the table.
Is Your Equity Trapped?
Download our Portfolio Capital Audit Checklist — a 27-point diagnostic tool used by serious multifamily investors to identify trapped equity, misaligned debt terms, and missed capital deployment opportunities.
5 critical audit areas most investors overlook
Self-scoring system with clear interpretation guide
Actionable insights you can apply immediately
Used by investors managing 30–500+ units
Portfolio Capital Audit Checklist
FREE DOWNLOAD — 8-PAGE PDF