Investor profile - MA
Mary Cerio
Mary Cerio is a real estate investor and operator based in Boston-Worcester, MA-NH. Public filings show activity across 16 properties held through 18 holding companies. Recent mortgage relationships include Rockland Trust, Commerce Bank & Trust, and Brookline Bank.
Mary's Activity
As of December 2025, public records show approximately $27.6M in recorded mortgage exposure linked to this investor across at least 21 mortgage filings and 16 properties held through 18 holding companies. Activity appears concentrated in multifamily and residential assets recorded between 2015 and 2023.
Primary Geography
Boston-Worcester, MA-NH
ZIP codes: 02127, 02129, 02141, 02113, and 02120
Most recorded activity for this investor appears in BOSTON, CHARLESTOWN, CAMBRIDGE, SOUTH BOSTON, and MISSION HILL.
Property Type Breakdown
Associated Entities (18)
MA · 0 properties · 5 mortgages
MA · 0 properties · 3 mortgages
MA · 0 properties · 1 mortgage
+15 more not shown
Mortgages (21)
Top Lenders
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 12/02/2021 | $1.6M | Closed | FIRST REPUBLIC BANK | 45 1ST AVE LLC | 45 1ST AVE, CHARLESTOWN, MA 02129 404 |
| 12/02/2021 | $1.6M | Open | FIRST REPUBLIC BANK | STARBOARD 42NC LLC | - |
| 03/25/2019 | $1.4M | Closed | FIRST REPUBLIC BANK | 737 PARKER STREET LLC | 737 PARKER ST, MISSION HILL, MA 02120 |
+18 more not shown
Owned Properties (16)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 45 1ST AVE, CHARLESTOWN, MA 02129 404 | LAUREN PUTMAN | Sold | $425k |
| 737 PARKER ST, MISSION HILL, MA 02120 | 737 PARKER STREET LLC | Sold | $2.0M |
| 16 GORE ST, CAMBRIDGE, MA 02141 | 16 GORE STREET LLC | Sold | $1.1M |
+13 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in multifamily and residential properties across Boston-Worcester, MA-NH.
What companies is Mary Cerio associated with?
Mary Cerio is associated with 18 entities based on extracted signatures from public records. Key entities include 45 1ST AVE LLC, 737 PARKER STREET LLC, 24 BELKNAP STREET LLC, 149 WEST EIGHTH STREET LLC, and 271 WEST 5TH LLC.
How many properties are associated with this investor?
At least 16 properties are associated with Mary Cerio and the entities they control, based on signatures extracted from recorded documents connecting Mary Cerio to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references Rockland Trust, Commerce Bank & Trust, and Brookline Bank, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2015 through 2023, with the most recent mortgage recorded in 2021.
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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