35 Years of Commercial Real Estate Experience.
One Trusted Advisor.
For more than 35 years, Mark Stempel has been involved in virtually every facet of commercial real estate throughout New York City and Long Island. His experience spans brokerage, ownership, development, acquisitions, leasing, property management, and investment strategy, providing clients with a depth of knowledge that extends well beyond the traditional brokerage model.
Today, Blue Island Homes Commercial Real Estate brings that experience to investors, developers, landlords, tenants, and business owners seeking knowledgeable representation and personalized service. Whether representing retail, office, multifamily, mixed-use, development sites, or investment properties, our team delivers strategic guidance, skilled negotiation, and a hands-on approach tailored to each client's objectives.
Our Track Record
Trust
the best
$275+
Million In Property Value Sold
SERVICES
COMMERCIAL LEASING
Tenant Representation • Landlord Representation • Retail • Office • Industrial
Whether representing landlords or tenants, Blue Island Homes Commercial Real Estate provides strategic leasing services designed to maximize value and support long-term success. We advise clients through every phase of the leasing process, including market analysis, site selection, lease negotiations, financial analysis, and marketing strategy. Our objective is to secure the right space, the right tenant, and the right terms while protecting our clients' long-term interests.
DEVELOPMENT & LAND
Site Selection • Development Sites • Acquisition Analysis • Development Consulting • Entitlements
Successful development begins with selecting the right site and understanding its full potential. Drawing on more than 35 years of commercial real estate and development experience, we assist developers, investors, and landowners with site selection, acquisition analysis, due diligence, zoning and entitlement strategy, and development consulting. Our background in development, construction, and brokerage enables us to identify opportunities, evaluate risk, and help maximize long-term value.
OWNER-USER PROPERTIES
Medical • Professional • Retail • Warehouse • Industrial • Flex Space
Purchasing or leasing commercial space is a significant business decision. We help business owners identify properties that align with their operational needs, growth objectives, and financial goals. From location analysis and property selection to lease negotiations and acquisitions, we provide practical guidance that helps clients make informed real estate decisions while positioning their businesses for long-term success.
COMMERCIAL PROPERTY VALUATIONS
Broker Opinions of Value (BOVs) • Investment Analysis • Market Rent Surveys
An accurate valuation is the cornerstone of every successful commercial real estate decision. Blue Island Homes Commercial Real Estate prepares comprehensive Broker Opinions of Value (BOVs), investment analyses, and market rent surveys for owners, investors, lenders, attorneys, and financial professionals. Our valuations combine market intelligence, comparable sales and leasing data, income analysis, and local market expertise to support acquisitions, dispositions, leasing strategies, financing, estate planning, and asset management decisions.
ASSET & PROPERTY ADVISORY
Asset Management • Portfolio Strategy • Owner Representation
Commercial real estate ownership extends well beyond buying and selling. We advise property owners on leasing strategy, asset positioning, capital improvements, redevelopment opportunities, and long-term portfolio planning. Whether overseeing a single property or multiple assets, we help owners enhance performance, increase value, and make informed decisions throughout the life of their investment.
This addition reinforces that Blue Island Homes Commercial Real Estate is a full-service advisory practice, not simply a brokerage. It also highlights one of your strongest differentiators: your decades of experience as an owner, developer, and commercial real estate executive.
