Built on Wall Street,
Designed for Investors
GSM Commercial Capital was founded on a simple premise: multifamily investors deserve the same caliber of capital strategy that institutional players take for granted.
Founder & Principal
Gary Mascitis, Jr.
From Wall Street to Your Capital Strategy
Gary Mascitis, Jr. has spent 35+ years in finance, including 23 years on Wall Street where he was part of raising $200 billion in capital for public companies — including $6 billion specifically for real estate companies and builders. That experience gave him something most commercial lenders simply don't have: the ability to see a portfolio as a single, interconnected financial instrument rather than a collection of individual properties.
When Gary founded GSM Commercial Capital, his mission was clear: bring institutional-grade capital strategy to the multifamily investors who need it most — the operators scaling from 30 to 500+ units who have outgrown transactional lending relationships but haven't yet reached the scale where institutional advisory is standard.
The result is what clients call the "Capital Quarterback" — a single strategic partner who understands your entire portfolio, knows every lender in the market, and can engineer the optimal capital structure for your specific growth objectives. Gary doesn't just find loans; he architects capital strategies that unlock trapped equity, consolidate fragmented debt, and position portfolios for their next phase of expansion.
Today, GSM has served over 200 investors and advises on portfolios totaling 6,000+ units. Every engagement begins with a confidential portfolio review — because the right capital strategy starts with understanding where you are and where you want to go.
Our Origin
From Wall Street to Main Street
Gary spent 23 years on Wall Street, where he was part of raising $200 billion in capital for public companies. He founded GSM to bring that same institutional rigor to Main Street — to the multifamily investors building real wealth in real communities. That journey, from the trading floors of lower Manhattan to the closing tables of real estate, is the foundation of everything we do.
Capital Quarterback, Not Loan Broker
Portfolio-Level Thinking
We don't evaluate properties in isolation. Every financing decision is made in the context of your entire portfolio — current holdings, pipeline, and long-term objectives.
Alignment, Not Transactions
We succeed when you grow. Our advisory model is built on long-term partnerships, not one-off deals. Many of our clients have been with us for 5+ years because the relationship compounds in value.
Institutional Rigor, Personal Service
You get the analytical depth of a Wall Street firm with the responsiveness and accessibility of a boutique practice. Gary provides strategic oversight across every engagement, ensuring institutional standards are maintained.
Who Not How
Your time is best spent finding and executing deals. Let us handle the capital strategy — the lender relationships, the structuring, the negotiation — so you can focus on what you do best.
The People Behind GSM
GSM is built on a principle: every client engagement carries the full weight of 35+ years of finance expertise — regardless of which team member is quarterbacking the transaction. Gary designed the strategic framework and lending relationships that the entire team operates within. Each associate is trained to execute at the same standard, with Gary providing oversight and strategic direction across every active engagement.
Tommy
Senior Associate
4 years with GSM
Manages complex multi-property transactions and lender negotiations from term sheet through closing.
Gary Mascitis III
Senior Associate
2 years with GSM
Leads portfolio analysis and capital structuring for emerging multifamily operators.
Pierre
Associate — Content & Client Communications
1 year with GSM
Coordinates underwriting workflows and client communications across active engagements.