Business Details
Your Premier Commercial Real Estate Partner in Long Island
American Investment Properties (AIP) is Long Island's premier commercial real estate (CRE) firm, dedicated to providing honest and reliable expert advice to every client. Our core values of Passion, Professionalism, and Positivity drive our success, fostering an open culture where innovation thrives. With over 20 years of experience, our founder Ron Koenigsberg, CCIM, has closed over $1.2 billion in sales, forming the backbone of our agency. Our team of brokers specializes in the sale and disposition of retail, office, mixed-use, multi-family, and industrial properties, with a proven track record of closing over $2 billion in property deals across Nassau, Suffolk, Queens, the Greater New York area, and beyond. Recognized as the 2017 LIBN Commercial Broker of the Year and Build Real Estate's Best Commercial Real Estate Agency in Long Island, we combine unmatched market knowledge with personalized service.Our brokers provide exceptional guidance through every transaction, ensuring transparency, professionalism, and optimal outcomes. We pride ourselves on creating innovative marketing materials, maintaining consistent performance, and delivering results-driven strategies tailored to each client's unique needs. Our commitment to positivity fosters meaningful relationships with clients and colleagues alike, enabling us to admit mistakes quickly, focus on growth, and maintain a stress-free environment. Whether buying or selling, AIP dedicates its resources to broker winning deals, leveraging deep local market understanding and a nationwide network. Our mission is to empower clients with data-driven insights, including complimentary 44-page appraisal reports and detailed offering memorandums, ensuring informed decision-making at every stage.
Services
Commercial Property Sales
Investment Property Disposition
Broker Price Opinions
Property Marketing
Due Diligence Support
Lease Abstracting
Consulting Services
Portfolio Management
Market Analysis
Transaction Coordination
Highlights and features
- We have over 20 years of experience in commercial real estate transactions.
- Our team provides personalized consulting and data-driven market analysis.
- We offer nationwide reach with deep local market expertise in Long Island.
- Our brokers have closed over $2 billion in property deals.
- We deliver transparent, client-focused service with no hidden fees.
Associations and certifications
- LIBN Commercial Broker of the Year
- Build Real Estate's Best Commercial Real Estate Agency
What people say
Amazing to work with
Knowledgeable brokers
Professional and transparent
Excellent results
Top-tier service
Services
Commercial Property Sales
We specialize in brokering commercial property sales across retail, office, industrial, and mixed-use assets. Our team leverages deep market knowledge and a robust network to secure optimal deals for sellers and buyers. With over $2 billion in closed transactions, we provide tailored marketing strategies, competitive pricing analysis, and seamless transaction management to ensure successful outcomes.
Investment Property Disposition
Our disposition services focus on maximizing returns for clients selling investment properties. We offer comprehensive consulting, including 44-page appraisal reports, targeted buyer outreach, and negotiation expertise. By combining local market insights with national trends, we streamline the selling process while maintaining transparency and accountability at every stage.
Broker Price Opinions
We provide detailed Broker Price Opinions (BPOs) to help clients understand their property's market value. These 44-page reports include comparative analysis, location assessments, and financial projections. Our data-driven approach ensures accurate valuations that inform strategic decisions for both buyers and sellers in the commercial real estate market.
Property Marketing
Our marketing team utilizes digital media, social platforms, and traditional channels to promote listings effectively. We create professional collateral, virtual tours, and targeted campaigns to attract qualified buyers. By maintaining constant communication with clients, we ensure properties receive maximum exposure and timely feedback throughout the sales process.
Due Diligence Support
We assist clients in navigating the complexities of commercial real estate transactions through thorough due diligence. Our services include contract review, lease abstraction, and coordination with third-party experts like appraisers and environmental consultants. This meticulous approach minimizes risks and ensures all legal and financial aspects are addressed before closing.
People
Ron Koenigsberg
President
With over 20 years of experience and $1.2 billion in closed sales, Ron leads AIP as a CCIM-certified expert. His deep market knowledge and negotiation skills have earned industry recognition, including the 2017 LIBN Commercial Broker of the Year award. He prioritizes client relationships and innovative solutions.
Dan Castellano
Sales Director
Dan brings extensive commercial real estate expertise to AIP, focusing on strategic sales and client acquisition. He combines market analytics with personalized service to help clients achieve their investment goals, leveraging a decade of industry experience and a robust professional network.
Kathryn Treacy
Operations Manager
Kathryn oversees AIP's operational efficiency, ensuring seamless transaction processes and client support. Her background in real estate operations and attention to detail contribute to the firm's reputation for reliability and professionalism in every client interaction.
Dawn Assael Gingold
Sales Associate
Dawn specializes in commercial property sales, offering clients market insights and negotiation expertise. Her client-centric approach and understanding of Long Island's real estate landscape help sellers and buyers navigate complex transactions with confidence.
Questions
What types of commercial properties do you specialize in?
We specialize in retail, office, industrial, mixed-use, and multi-family properties across Long Island and the Greater New York area.
How do you determine property valuations?
We provide detailed 44-page Broker Price Opinions comparing properties to similar listings and market trends for accurate valuations.
Can you help with out-of-state commercial real estate sales?
While our focus is Long Island and NY, we have a growing national network to assist with out-of-state transactions.
What marketing strategies do you use for property listings?
We employ digital media, social platforms, email campaigns, and traditional print to maximize property exposure and attract qualified buyers.
How do you support clients during the due diligence process?
Our team reviews contracts, coordinates third-party inspections, and ensures all legal and financial aspects are addressed before closing.
What sets AIP apart from other commercial real estate firms?
Our combination of local market expertise, $2+ billion transaction history, and client-focused service ensures personalized solutions and successful outcomes.
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