Investor profile - NY
Mark Nussbaum
Mark Nussbaum is a real estate investor and operator based in New York City, NY-NJ-CT. Public filings show activity across 21 properties held through 30 holding companies. Recent mortgage relationships include W FINANCIAL FUND, Berkadia Commercial Mortgage LLC, and HAMPTON PARTNERS.
Mark's Activity
As of December 2025, public records show approximately $47.6M in recorded mortgage exposure linked to this investor across at least 35 mortgage filings and 21 properties held through 30 holding companies. Activity appears concentrated in multifamily and residential assets recorded between 2010 and 2024.
Primary Geography
New York City, NY-NJ-CT
ZIP codes: 11205, 11206, 11213, 10019, and 10029
Most recorded activity for this investor appears in BROOKLYN, NEW YORK, FLUSHING, and BRONX.
Property Type Breakdown
Associated Entities (30)
NY · 0 properties · 6 mortgages
NY · 0 properties · 5 mortgages
NY · 4 properties · 5 mortgages
+27 more not shown
Mortgages (35)
Top Lenders
$9.6M · 2 loans
$6.6M · 1 loan
$5.0M · 2 loans
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 08/02/2023 | $800k | Open | URBAN CAPITAL LENDERS | 875 REALTY ASSOCIATES LLC | 875 MONTGOMERY ST, BROOKLYN, NY 11213 |
| 04/04/2022 | $4.8M | Open | MISHMERET TRUST | NEW BROOKLYN DEVELOPMENT LLC | 1 KENILWORTH PL, BROOKLYN, NY 11210 |
| 08/19/2021 | $2.5M | Open | HAMPTON PARTNERS | 100 WALWORTH LLC | 102 SANDFORD ST, BROOKLYN, NY 11205 |
+32 more not shown
Owned Properties (21)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 875 MONTGOMERY ST, BROOKLYN, NY 11213 | 875 REALTY ASSOCIATES LLC | Owns - 2.4 yrs | $850k |
| 30 85TH ST, FLUSHING, NY 11370 | 85TH ST JACKSON HEIGHTS LLC | Sold | $0 |
| 102 SANDFORD ST, BROOKLYN, NY 11205 | 102 SANDFORD LLC | Owns - 4.7 yrs | $4.5M |
+18 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in multifamily, residential, and industrial properties across New York City, NY-NJ-CT.
What companies is Mark Nussbaum associated with?
Mark Nussbaum is associated with 30 entities based on extracted signatures from public records. Key entities include 22 STARR STREET LLC, NEW BROOKLYN DEVELOPMENT LLC, 100 WALWORTH LLC, SHORE ROAD OWNERS INC, and 383 HERKIMER REALTY LLC.
How many properties are associated with this investor?
At least 21 properties are associated with Mark Nussbaum and the entities they control, based on signatures extracted from recorded documents connecting Mark Nussbaum to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references W FINANCIAL FUND, Berkadia Commercial Mortgage LLC, and HAMPTON PARTNERS, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2010 through 2024, with the most recent mortgage recorded in 2023.
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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