Investor profile - MA

Mark Winkeller

Mark Winkeller is a real estate investor and operator based in Boston-Worcester, MA-NH. Public filings show activity across 14 properties held through 6 holding companies. Recent mortgage relationships include SOUTH BOSTON NEIGHBORHOOD DEVELOPMENT, TAUNTON AVENUE SECURITIES, and Massachusetts Housing Partnership.

Contact info available

Mark's Activity

As of January 2026, public records show approximately $44.2M in recorded mortgage exposure linked to this investor across at least 15 mortgage filings and 14 properties held through 6 holding companies. Activity appears concentrated in multifamily and misc assets recorded between 2015 and 2022.

Primary Geography

Boston-Worcester, MA-NH

ZIP codes: 02124, 02152, 02125, 02134, and 02130

Most recorded activity for this investor appears in BOSTON, WINTHROP, JAMAICA PLAIN, ACTON, and ROXBURY.

Property Type Breakdown

Multifamily50%
Misc38%
Residential13%

Associated Entities (6)

SOUTH BOSTON VETERANS HOUSING LLC

MA · 0 properties · 6 mortgages

active
Incorporated on 08/11/2010 in MAMailing Address: 273 D STREET, SOUTH BOSTON, 02127, MA, USA
OCONNOR SENIOR HOUSING LLC

MA · 2 properties · 4 mortgages

active
Incorporated on 03/16/2016 in MAMailing Address: C/O SOUTH BOSTON NEIGHBORHOOD DEVELOPMENT CORPORATION, 273 D STREET, S. BOSTON, 02127, MA, USA

+4 more not shown

Mortgages (15)

Top Lenders

SOUTH BOSTON NEIGHBORHOOD DEVELOPMENT
SOUTH BOSTON NEIGHBORHOOD DEVELOPMENT

$12.9M · 3 loans

TAUNTON AVENUE SECURITIES
TAUNTON AVENUE SECURITIES

$11.3M · 1 loan

Massachusetts Housing Partnership
Massachusetts Housing Partnership

$8.8M · 3 loans

DateAmountStatusLenderBorrowerAddress
07/28/2022$1.2MOpenWOMENS INSTITUTE REALTYCARITAS COMMUNITIES INC423 E AVE,
CHELSEA, MA 02150
11/19/2018$11.3MOpenTAUNTON AVENUE SECURITIESOCONNOR SENIOR HOUSING LLC-

+13 more not shown

Owned Properties (14)

AddressDeeded ownerStatusConsideration
5 OCONNOR WAY,
BOSTON, MA 02127
OCONNOR SENIOR HOUSING LLCOwns - 7.2 yrs$50k
179 SYDNEY ST,
BOSTON, MA 02125
CARITAS COMMUNITIES HOLDINGS INCOwns - 8.9 yrs$100

+12 more not shown

FAQ

What type of real estate does this investor focus on?

Associated mortgages and deeds show activity in multifamily, misc, and residential properties across Boston-Worcester, MA-NH.

What companies is Mark Winkeller associated with?

Mark Winkeller is associated with 6 entities based on extracted signatures from public records. Key entities include SOUTH BOSTON VETERANS HOUSING LLC, OCONNOR SENIOR HOUSING LLC, 206 WEST LLC, CARITAS COMMUNITIES HOLDINGS INC, and FENWAY COMMUNITY DEVELOPMENT CORP.

How many properties are associated with this investor?

At least 14 properties are associated with Mark Winkeller and the entities they control, based on signatures extracted from recorded documents connecting Mark Winkeller to the entities.

Which lenders has this investor worked with?

Recent mortgage activity references SOUTH BOSTON NEIGHBORHOOD DEVELOPMENT, TAUNTON AVENUE SECURITIES, and Massachusetts Housing Partnership, indicating a mix of lending relationships.

How recent is their activity?

Records show activity from 2015 through 2022, with the most recent mortgage recorded in 2022.

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 compliance@elementix.ai. Elementix reviews such requests only where required by applicable law or where information is factually inaccurate. General objections or unsupported demands do not create a removal obligation.