Investor profile - MA

Jeffrey Karp

Jeffrey Karp is a real estate investor and operator based in Boston-Worcester, MA-NH. Public filings show activity across 2 properties held through 4 holding companies. Recent mortgage relationships include Cambridge Savings Bank and Eastern Bank.

Contact info available

Jeffrey's Activity

As of December 2025, public records show approximately $5.7M in recorded mortgage exposure linked to this investor across at least 2 mortgage filings and 2 properties held through 4 holding companies. Activity appears concentrated in commercial and industrial assets recorded between 2016 and 2022.

Primary Geography

Boston-Worcester, MA-NH

ZIP codes: 01852 and 01752

Most recorded activity for this investor appears in LOWELL and MARLBOROUGH.

Property Type Breakdown

Commercial50%
Industrial50%

Associated Entities (4)

CANTON II JB CAPITAL LLC

MA · 0 properties · 1 mortgage

Incorporated on 03/27/2024 in MAMailing Address: 495 UPER GRASSY HILL RD, WOODBURY, 06798, CT, USA
GAME FIVE LLC

MA · 4 properties · 1 mortgage

active
Incorporated on 12/03/2018 in MAMailing Address: 1180 WASHINGTON STREET, UNIT 300, BOSTON, 02118, MA, USA
THIRTY DIAMONDS LLC

MA · 0 properties · 1 mortgage

active
Incorporated on 06/01/2017 in MAMailing Address: 3 COPLEY PLACE, SUITE 3202, BOSTON, 02116, MA, USA

+1 more not shown

Mortgages (2)

DateAmountStatusLenderBorrowerAddress
02/05/2019$1.1MOpenEastern BankGAME FIVE LLC24 HOWE ST,
LOWELL, MA 01852
08/08/2017$4.5MOpenCambridge Savings BankTHIRTY DIAMONDS LLC362 ELM ST,
MARLBOROUGH, MA 01752

+0 more not shown

Owned Properties (2)

AddressDeeded ownerStatusConsideration
24 HOWE ST,
LOWELL, MA 01852
GAME FIVE LLCOwns - 6.9 yrs$1.5M
362 ELM ST,
MARLBOROUGH, MA 01752
THIRTY DIAMONDS LLCSold$6.0M

+0 more not shown

FAQ

What type of real estate does this investor focus on?

Associated mortgages and deeds show activity in commercial and industrial properties across Boston-Worcester, MA-NH.

What companies is Jeffrey Karp associated with?

Jeffrey Karp is associated with 4 entities based on extracted signatures from public records. Key entities include CANTON II JB CAPITAL LLC, GAME FIVE LLC, THIRTY DIAMONDS LLC, and KARP BOYS RULE MANAGEMENT LLC.

How many properties are associated with this investor?

At least 2 properties are associated with Jeffrey Karp and the entities they control, based on signatures extracted from recorded documents connecting Jeffrey Karp to the entities.

Which lenders has this investor worked with?

Recent mortgage activity references Cambridge Savings Bank and Eastern Bank, indicating a mix of lending relationships.

How recent is their activity?

Records show activity from 2016 through 2022, with the most recent mortgage recorded in 2019.

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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