Investor profile - PA
William Keller
William Keller is a real estate investor and operator based in Philadelphia, PA-NJ-DE-MD. Public filings show activity across 4 properties held through 6 holding companies. Recent mortgage relationships include NewRez.
William's Activity
As of December 2025, public records show approximately $469k in recorded mortgage exposure linked to this investor across at least 1 mortgage filings and 4 properties held through 6 holding companies. Activity appears concentrated in residential assets recorded between 2013 and 2023.
Associated People
Primary Geography
Philadelphia, PA-NJ-DE-MD
ZIP codes: 19130, 19148, 19355, and 19446
Most recorded activity for this investor appears in PHILADELPHIA, LANSDALE, and MALVERN.
Property Type Breakdown
Associated Entities (6)
PA · 0 properties · 1 mortgage
PA · 0 properties · 0 mortgages
PA · 0 properties · 0 mortgages
+3 more not shown
Mortgages (1)
Top Lenders
| Date | Amount | Status | Lender | Borrower | Address |
|---|---|---|---|---|---|
| 11/02/2021 | $469k | Open | NewRez | WILLIAM F KELLER 11I | 1738 S 2ND ST, PHILADELPHIA, PA 19148 |
+0 more not shown
Owned Properties (4)
| Address | Deeded owner | Status | Consideration |
|---|---|---|---|
| 2401 PENNSYLVANIA AVE, PHILADELPHIA, PA 19130 15B36 | STEPHEN KASLOFF | Sold | $225k |
| 1738 S 2ND ST, PHILADELPHIA, PA 19148 | ERICA KELLER | Owns - 6.8 yrs | $595k |
| 8 THAYER DR, MALVERN, PA 19355 | LIBERTY PROPERTY LP | Owns - 13.0 yrs | $1.3M |
+1 more not shown
FAQ
What type of real estate does this investor focus on?
Associated mortgages and deeds show activity in residential properties across Philadelphia, PA-NJ-DE-MD.
What companies is William Keller associated with?
William Keller is associated with 6 entities based on extracted signatures from public records. Key entities include WILLIAM F KELLER 11I, NANCY H KELLER BY HER AGENT WILLIAM KELLER, WILLIAM F KELLER CO PARTNERS TRADING AS KO SPORTING GOODS AS PARTNERSHIP PROPERTY, MARK OLKOWSKI TA K & O SPORTING GOODS, and WILLIAM F KELLER TA KO SPORTING GOODS.
How many properties are associated with this investor?
At least 4 properties are associated with William Keller and the entities they control, based on signatures extracted from recorded documents connecting William Keller to the entities.
Which lenders has this investor worked with?
Recent mortgage activity references NewRez, indicating a mix of lending relationships.
How recent is their activity?
Records show activity from 2013 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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