Investor Profile - WA
John Mase
John Mase is a real estate investor and operator based in Seattle-Tacoma, WA. Public filings show activity across 36 properties held through 5 holding companies. Recent mortgage relationships include SIAUWA001, Prudential Financial, and Centennial Bank.
John's Activity
As of June 2026, public records show approximately $364.6M in recorded mortgage exposure linked to this investor across at least 6 mortgage filings and 36 properties held through 5 holding companies. Activity appears concentrated in industrial and vacant assets recorded between 2016 and 2024.
Associated People
Primary Geography
Seattle-Tacoma, WA
ZIP codes: 98023, 98001, 98003, and 98033
Most activity in FEDERAL WAY, AUBURN, and KIRKLAND.
Property Type Breakdown
Associated Entities (5)
WA · 25 properties · 3 mortgages
WA · 2 properties · 1 mortgage
+3 more entities not shown
Mortgages (6)
Top Lenders
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 12/04/2023 | $67.0M | Open | Prudential Financial | FEDERAL WAY PARCEL B LLC | 33815 32ND CT SW, FEDERAL WAY, WA 98023 |
| 05/27/2022 | $160.0M | Open | SIAUWA001 | AUBURN LAND LLC | 400 15TH ST, AUBURN, WA 98001 |
+4 more not shown
Owned Properties (36)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 33815 32ND CT SW, FEDERAL WAY, WA 98023 | FEDERAL WAY PARCEL A LLC | Sold | $313 |
| 336TH ST, FEDERAL WAY, WA 98003 | FEDERAL WAY BP LLC | Owns - 5.8 yrs | $0 |
+34 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in industrial, vacant, and office properties across Seattle-Tacoma, WA.
What companies is John Mase associated with?
John Mase is associated with 5 entities based on extracted signatures from public records. Key entities include FEDERAL WAY CAMPUS LLC, FEDERAL WAY BP LLC, AUBURN LAND LLC, FEDERAL WAY PARCEL A LLC, and IRG AUBURN LLC.
How many properties are associated with this investor?
At least 36 properties are associated with John Mase and the entities they control, based on signatures extracted from recorded documents connecting John Mase to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references SIAUWA001, Prudential Financial, and Centennial Bank, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2016 through 2024, with the most recent mortgage recorded in 2023.
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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