Investor profile - MA
Mark Killoren
Mark Killoren is a real estate investor and operator based in Boston-Worcester, MA-NH. Public filings show activity across 17 properties held through 11 holding companies. Recent mortgage relationships include NICHOLAS WARREN, Asset Based Lending, and Cardinal Capital Group.
Mark's Activity
As of December 2025, public records show approximately $20.3M in recorded mortgage exposure linked to this investor across at least 21 mortgage filings and 17 properties held through 11 holding companies. Activity appears concentrated in residential and multifamily assets recorded between 2018 and 2025.
Primary Geography
Boston-Worcester, MA-NH
ZIP codes: 02143, 02138, 02476, 02119, and 02155
Most recorded activity for this investor appears in SOMERVILLE, CAMBRIDGE, ARLINGTON, BOSTON, and MEDFORD.
Property Type Breakdown
Associated Entities (11)
MA · 2 properties · 14 mortgages
MA · 2 properties · 1 mortgage
MA · 0 properties · 1 mortgage
+8 more not shown
Mortgages (21)
Top Lenders
$7.6M · 2 loans
$3.5M · 2 loans
$3.5M · 2 loans
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 12/15/2025 | $1.6M | Open | Asset Based Lending | 23 BROOKFORD LLC | 19 SHIRLEY RD, MEDFORD, MA 02155 |
| 11/25/2025 | $1.9M | Open | Asset Based Lending | 95 CUSHING STREET LLC | 95 CUSHING ST, CAMBRIDGE, MA 02138 |
| 10/17/2025 | $1.1M | Open | Grand Coast Capital Group | 20 SYMMES ROAD LLC | 19 SHIRLEY RD, MEDFORD, MA 02155 |
+18 more not shown
Owned Properties (17)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 439 WALNUT AVE, BOSTON, MA 02119 | 439 WALNUT LLC | Owns - 3 mos | $700k |
| 37 BERKELEY ST, SOMERVILLE, MA 02143 | BERKELEY STREET LLC | Sold | $0 |
| 37 BERKELEY ST, SOMERVILLE, MA 02143 | BERKELEY STREET LLC | Sold | $0 |
+14 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential and multifamily properties across Boston-Worcester, MA-NH.
What companies is Mark Killoren associated with?
Mark Killoren is associated with 11 entities based on extracted signatures from public records. Key entities include 53 CONCORD REALTY LLC, 439 WALNUT LLC, 180 HOLWORTHY LLC, FORGED INVESTMENTS TEAM LLC, and 23 BROOKFORD LLC.
How many properties are associated with this investor?
At least 17 properties are associated with Mark Killoren and the entities they control, based on signatures extracted from recorded documents connecting Mark Killoren to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references NICHOLAS WARREN, Asset Based Lending, and Cardinal Capital Group, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2018 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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