Investor Profile - NY
Isaac Markowitz
Isaac Markowitz is a real estate investor and operator based in New York City, NY-NJ-CT. Public filings show activity across 11 properties held through 8 holding companies. Recent mortgage relationships include Webster Bank, KEARNY BANK, and Argentic.
Isaac's Activity
As of June 2026, public records show approximately $73.1M in recorded mortgage exposure linked to this investor across at least 8 mortgage filings and 11 properties held through 8 holding companies. Activity appears concentrated in residential and vacant assets recorded between 2015 and 2025.
Associated People
Primary Geography
New York City, NY-NJ-CT
ZIP codes: 12084, 11206, 11207, 11211, and 11221
Most activity in BROOKLYN and GUILDERLAND.
Property Type Breakdown
Associated Entities (8)
NY · 3 properties · 4 mortgages
NY · 1 property · 2 mortgages
+6 more entities not shown
Mortgages (8)
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 12/03/2025 | $20.7M | Open | KEARNY BANK | HIAWATHA LAND DEVELOPMENT LLC | 6051 STATE FARM RD, GUILDERLAND, NY 12084 |
| 07/02/2025 | $10.5M | Open | Argentic | HIAWATHA LAND DEVELOPMENT BMS LLC | 6051 STATE FARM RD, GUILDERLAND, NY 12084 |
+6 more not shown
Owned Properties (11)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 6025 STATE FARM RD, GUILDERLAND, NY 12084 | TOWN OF GUILDERLAND INDUSTRIAL DEVELOPMENT AG | Owns - 4.3 yrs | $0 |
| 6051 STATE FARM RD, GUILDERLAND, NY 12084 | HIAWATHA LAND DEVELOPMENT LLC | Owns - 4.8 yrs | $390k |
+9 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential, vacant, and commercial properties across New York City, NY-NJ-CT.
What companies is Isaac Markowitz associated with?
Isaac Markowitz is associated with 8 entities based on extracted signatures from public records. Key entities include HIAWATHA LAND DEVELOPMENT LLC, PERETZ STRAHL INC, WILLO CASTLE LLC, HIAWATHA LAND DEVELOPMENT BMS LLC, and 740 CHAUNCEY FIRST LLC.
How many properties are associated with this investor?
At least 11 properties are associated with Isaac Markowitz and the entities they control, based on signatures extracted from recorded documents connecting Isaac Markowitz to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references Webster Bank, KEARNY BANK, and Argentic, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2015 through 2025, with the most recent mortgage recorded in 2025.
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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