Investor Profile - NY
Shai Birenzweig
Shai Birenzweig is a real estate investor and operator based in New York City, NY-NJ-CT. Public filings show activity across 98 properties held through 12 holding companies. Recent mortgage relationships include Tideway Capital Group, S3 Capital, and AFP NEW YORK INVESTMENT.
Shai's Activity
As of June 2026, public records show approximately $13.9M in recorded mortgage exposure linked to this investor across at least 32 mortgage filings and 98 properties held through 12 holding companies. Activity appears concentrated in residential and commercial assets recorded between 2015 and 2023.
Associated People
Primary Geography
New York City, NY-NJ-CT
ZIP codes: 11221, 11233, 11216, 11211, and 11222
Most activity in BROOKLYN.
Property Type Breakdown
Associated Entities (12)
NY · 2 properties · 4 mortgages
NY · 1 property · 4 mortgages
+10 more entities not shown
Mortgages (32)
Top Lenders
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 04/08/2022 | $500k | Open | GRANDE PREZZO | 668 NOSTRAND DEVELOPMENT LLC | 668 NOSTRAND AVE, BROOKLYN, NY 11216 |
| 03/11/2022 | $564k | Closed | Alpha Funding | 689 QUINCY DEVELOPMENT LLC | 689 QUINCY ST, BROOKLYN, NY 11221 |
+30 more not shown
Owned Properties (98)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 1269 DEKALB AVE, BROOKLYN, NY 11221 | ALICIA SOLIS | Sold | $677k |
| 67 BUSHWICK AVE, BROOKLYN, NY 11211 | 67 BUSHWICK LLC | Sold | $1.6M |
+96 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential and commercial properties across New York City, NY-NJ-CT.
What companies is Shai Birenzweig associated with?
Shai Birenzweig is associated with 12 entities based on extracted signatures from public records. Key entities include 766 DECATUR LLC, 668 NOSTRAND DEVELOPMENT LLC, 1269 DEKALB DEVELOPMENT LLC, 67 BUSHWICK LLC, and 819 LEXINGTON LLC.
How many properties are associated with this investor?
At least 98 properties are associated with Shai Birenzweig and the entities they control, based on signatures extracted from recorded documents connecting Shai Birenzweig to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references Tideway Capital Group, S3 Capital, and AFP NEW YORK INVESTMENT, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2015 through 2023, with the most recent mortgage recorded in 2022.
How is associated activity determined?
Elementix uses AI to extract signatures from recorded documents. These signatures are used to determine the relationships between people and entities. This is a novel approach that goes beyond looking at corporate filings and skip-tracing.
The information displayed on this page is compiled from recorded real estate documents, business filings, and other lawfully available sources. Elementix summarizes and analyzes public record activity related to investment real estate and associated business entities. Any contact indicators shown (such as email domain references or partial phone digits) are provided solely as unverified signals and may be incomplete or outdated.
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