Our Firm


Meridian's highly experienced leadership team averages more than 23 years of commercial real estate experience:

Ralph Herzka

Chairman and Chief Executive Officer

Mr. Herzka has led Meridian Capital Group as Chairman & CEO since founding the company in 1991. He is the guiding force behind the firm's growth and success, and has set standards nationally for expertise, vision, and reputation in commercial real estate.

Originally established as a commercial mortgage brokerage in Brooklyn, NY, Meridian Capital Group is now a national leader in debt capital markets, with investment sales and retail leasing divisions in New York City launched in 2015 and 2018, respectively. The firm has completed over $300 billion of financing and $3 billion in investment sales transactions.

Mr. Herzka demonstrates an exceptional ability to foster long-lasting relationships with a broad array of lenders, forming critical alliances with banks, agencies, life companies, CMBS lenders, and debt funds. Having personally led over $100 billion of financing transactions, Mr. Herzka also cultivates multi-generational relationships with real estate investors from across the asset spectrum: multifamily, office, retail, industrial, hotel, cooperative, senior housing, and healthcare.

Additionally, Mr. Herzka was a co-founder of Beech Street Capital, an agency lending platform that was sold to Capital One in 2013, and was a founder of Ladder Capital, a commercial real estate lender and CMBS originator.

Mr. Herzka actively participates in numerous charitable causes and organizations. He is a member of the Real Estate Board of New York, the Mortgage Bankers Association, the Commercial Real Estate Finance Council, and the International Council of Shopping Centers.

Aaron Birnbaum

Executive Vice President

Mr. Birnbaum is a cofounder of Meridian and an Executive Vice President. He is responsible for managing the firm's commercial, conduit and structured finance platforms. Under his stewardship, Meridian has financed more than $35 billion in commercial transactions across the country. Mr. Birnbaum also assumes a direct leadership role in managing relationships with a broad array of conduit and construction lenders, as well as multifamily and commercial property owners.

Avi Weinstock

Executive Vice President

Mr. Weinstock joined Meridian in 1992, shortly after its formation, and serves as an Executive Vice President. Mr. Weinstock's responsibilities include managing Meridian's national team of multifamily mortgage finance advisors, loan underwriters and processors. In addition to having oversight authority of the Company's multifamily placement operations, Mr. Weinstock is responsible for day-to-day management of the firm's relationships with its most active lenders. Mr. Weinstock also personally manages many of the firm's largest proprietary client relationships.

Daniel Heumann

Partner, Executive Vice President, Chief Business Development and Strategy Officer

Mr. Heumann joined Meridian in 2006 and currently serves as the Company's Chief Business Development and Strategy Officer. In this role he is responsible for the development and implementation of new client service and client acquisition programs and works closely with other members of the senior management team in setting the strategic direction of the firm. Mr. Heumann served as Meridian’s Chief Operating Officer through July 2017 when he was promoted to his current role. During this time he was a recipient of NJ Biz's "40 under 40" award and recognized by Real Estate Weekly as a Rising Star in commercial real estate.

Prior to joining Meridian, Mr. Heumann was Senior Vice President, Director of Acquisitions, at Kushner Companies. He also worked as an attorney at a prominent law firms specializing in mergers and acquisitions and commercial litigation.

Mr. Heumann, a Fulbright Scholar, received his B.A., summa cum laude and Phi Beta Kappa from Binghamton University, and received his J.D. from New York University Law School, where he was the Leslie Glass Scholar.

Jeff Weinberg

Executive Vice President

Mr. Weinberg is a cofounder and Executive Vice President of the Company, specializing in the facilitation of New York multifamily lending transactions. He manages a team of skilled mortgage finance professionals, and is actively involved on behalf of Meridian in the development of many key client and lender relationships.