Long Island & Queens · Est. 2001 · $2B+ Closed

We sell Long Island and Queens' commercial properties at the highest possible price.

American Investment Properties is a Garden City–based CRE brokerage focused on Office, Medical, Retail & NNN, and Multifamily investment sales across Long Island and Queens. We sell exclusively — no leasing, no dual agency, seller representation only.

$2B+
Closed Transactions
30+
Years of Experience
2017
LIBN Broker of the Year
4
Asset Classes We Master
01

Sales Only

We sell investment properties. We do not lease — no divided attention, no conflicting incentives.

02

Exclusives Only

We take on exclusive listings only. Every property gets our full focus and full market push.

03

Sellers Only

We represent the seller — period. No dual agency, no split loyalty, no conflict of interest.

Ron Koenigsberg, CCIM, Founder and President of American Investment Properties
CCIM
LIBN Broker of the Year
CREXi Platinum
Founder

I started AIP on July 4th, 2001 — the timing felt right for betting on myself. Twenty-five years later, we've closed over $2 billion in Long Island and Queens commercial real estate, built one deal — and one relationship — at a time.

I got here honestly: watching my father survey construction sites as a kid, a degree in accounting, a stint at Arthur Andersen, a master's in real estate from NYU, and years running acquisitions and brokerage before I built something of my own.

What hasn't changed is the approach — every client gets our full attention, whether it's a straightforward sale or a complex 1031 exchange.

"We're not just here to get a deal done. We're here to get you the best one."

— Ron Koenigsberg, CCIMPresident & Founder, American Investment Properties
What We Sell

Long Island & Queens' Premier Commercial Real Estate Firm

American Investment Properties provides honest, expert advice to every client — whether you're buying or selling. Our brokers specialize in the sale and disposition of investment properties across the following asset classes:

01

Retail

Freestanding retail, NNN ground leases, and shopping centers across Long Island and Queens.

02

Office

Single- and multi-tenant office buildings, including medical office investment sales.

03

Mixed Use

Combined retail, office, and residential properties with diversified income streams.

04

Industrial

Warehouse, distribution, and light-industrial properties throughout the region.

Just Sold

We don't just list. We close.

A sample of AIP's recent success stories across Long Island and Queens.

Jericho Tpke Retail Building - Sold for $1,925,000
Day Care & Apartment Building in Elmhurst, NY - Sold for $3,640,000
Freestanding Retail Building in Jericho, NY - Sold for $2,250,000
1031 Exchange

Selling? Let's Talk About Your Next Move.

A 1031 exchange lets you defer capital gains tax by rolling the proceeds of a sale into a new investment property — but the timeline is unforgiving and the rules are exacting. Ron has guided clients through complex exchanges for over 30 years, and can help you plan yours before the clock starts.

Your Exchange Clock
45
Days to identify
your replacement property
180
Days to close
on the new purchase