Investor Profile - NY
Jonathan Helfer
Jonathan Helfer is a real estate investor and operator based in New York City, NY-NJ-CT. Public filings show activity across 233 properties held through 57 holding companies. Recent mortgage relationships include JPMorgan Chase Bank, RXR 685 1ST AVE PREFERRED INVESTOR, and Wells Fargo Bank.
Jonathan's Activity
As of May 2026, public records show approximately $463.5M in recorded mortgage exposure linked to this investor across at least 23 mortgage filings and 233 properties held through 57 holding companies. Activity appears concentrated in residential and commercial assets recorded between 2015 and 2026.
Associated People
Primary Geography
New York City, NY-NJ-CT
ZIP codes: 10282, 11201, 10019, 10023, and 10005
Most activity in NEW YORK, BROOKLYN, and LONG ISLAND.
Property Type Breakdown
Associated Entities (57)
NY · 25 properties · 38 mortgages
NY · 4 properties · 27 mortgages
+55 more entities not shown
Mortgages (23)
Top Lenders
$385.3M · 6 loans
$50.6M · 1 loan
$11.7M · 4 loans
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 02/05/2025 | $40.0M | Open | JPMorgan Chase Bank | 685 1ST AVE LLC | 685 1ST AVE, NEW YORK, NY 10016 |
| 02/05/2025 | $50.6M | Open | JPMorgan Chase Bank | 685 1ST AVE LLC | 685 1ST AVE, NEW YORK, NY 10016 |
+21 more not shown
Owned Properties (233)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 250 ST S #46B, NEW YORK, NY 10002 | REAL FLOW LLC | Owns - 2.7 yrs | $2.0M |
| 685 1ST AVE, NEW YORK, NY 10016 | LINDSAY PROCIW | Owns - 3.2 yrs | $3.7M |
+231 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential, commercial, and industrial properties across New York City, NY-NJ-CT.
What companies is Jonathan Helfer associated with?
Jonathan Helfer is associated with 57 entities based on extracted signatures from public records. Key entities include HENRY V MURRAY SENIOR LLC, 9TH ST DEV LLC, FORTIS DUMBO ACQUISITION LLC, 76 ELEVENTH AVENUE PROPERTY OWNER LLC, and 90 MORTON OWNER LLC.
How many properties are associated with this investor?
At least 233 properties are associated with Jonathan Helfer and the entities they control, based on signatures extracted from recorded documents connecting Jonathan Helfer to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references JPMorgan Chase Bank, RXR 685 1ST AVE PREFERRED INVESTOR, and Wells Fargo Bank, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2015 through 2026, 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.
Elementix is not a consumer reporting agency, and this information does not constitute a consumer report. The data may not be used to make decisions about an individual's eligibility for personal credit, consumer housing, employment, insurance, or any other purpose governed by the Fair Credit Reporting Act.
Elementix may suppress certain contact indicators where legally required or where appropriate for safety or privacy reasons. Requests for removal, suppression, or correction of information must be submitted to [email protected]. Elementix reviews such requests only where required by applicable law. General objections or unsupported demands do not create a removal obligation.