Mark Stempel

Mark Stempel

CEO, Blue Island Homes

Greenvale, NY 11548

Phone (646) 678-2875

Commercial real estate leader with 35+ years of experience in investment sales, leasing, development and property valuation.
Specialties
Investment Sales Broker, Tenant Rep
Property Types
Hospitality, Land, Office, Retail, Multifamily
Markets
Long Island (New York), New York City, Westchester/So Connecticut
Bio
With more than 35 years of commercial real estate experience, I bring a strong background in investment sales, leasing, development, site selection, property valuation, and strategic real estate planning. Before founding Blue Island Homes, I spent nearly 30 years as Vice President of Real Estate for the Riese Organization, overseeing a substantial and diverse commercial property portfolio throughout the New York metropolitan area. My Master of Architecture degree gives me a unique ability to evaluate properties from both a real estate and design perspective. Today, as Owner and Broker of Blue Island Homes, I lead the company’s Commercial Division, representing property owners, investors, developers, landlords, and tenants throughout Long Island and the greater New York market.
Education
Masters in Architecture, University of Maryland.
Affiliations
  • International Council of Shopping Centers (ICSC)
Awards
Best Boutique Real Estate Agency by Long Island Press 2025 & 2026