Investor profile - FL

John Armbruster

John Armbruster is a real estate investor and operator based in Tampa-St. Petersburg, FL. Public filings show activity across 10 properties held through 1 holding companies. Recent mortgage relationships include CHANNELSIDE MORTGAGES, RJG REAL ESTATE, and DARK STAR PROPERTIES.

Contact info available

John's Activity

As of December 2025, public records show approximately $350k in recorded mortgage exposure linked to this investor across at least 4 mortgage filings and 10 properties held through 1 holding companies. Activity appears concentrated in residential and vacant assets recorded between 2013 and 2025.

Primary Geography

Tampa-St. Petersburg, FL

ZIP codes: 33711, 33712, 33713, 33705, and 33756

Most recorded activity for this investor appears in SAINT PETERSBURG, PALM HARBOR, and CLEARWATER.

Property Type Breakdown

Residential90%
Vacant10%

Associated Entities (1)

REDSTONE CAPITAL LLC

FL · 9 properties · 4 mortgages

active
Incorporated on 05/07/2012 in FL

Mortgages (4)

Top Lenders

CHANNELSIDE MORTGAGES
CHANNELSIDE MORTGAGES

$350k · 1 loan

RJG REAL ESTATE
RJG REAL ESTATE

$0 · 0 loans

DARK STAR PROPERTIES
DARK STAR PROPERTIES

$0 · 0 loans

DateAmountStatusLenderBorrowerAddress
01/19/2017$350kOpenCHANNELSIDE MORTGAGESREDSTONE CAPITAL LLC-
10/14/2016$800kClosedDARK STAR PROPERTIESREDSTONE CAPITAL LLC1302 9TH AVE N,
SAINT PETERSBURG, FL 33705
03/07/2014$125kClosedCHANNELSIDE MORTGAGESREDSTONE CAPITAL LLC103 S CANAL DR,
PALM HARBOR, FL 34684

+1 more not shown

Owned Properties (10)

AddressDeeded ownerStatusConsideration
4635 EMERSON AVE S,
SAINT PETERSBURG, FL 33711
REDSTONE CAPITAL LLCSold$77k
1302 9TH AVE N,
SAINT PETERSBURG, FL 33705
REDSTONE CAPITAL LLCOwns - 10.8 yrs$3k
2411 1ST AVE N,
SAINT PETERSBURG, FL 33713
REDSTONE CAPITAL LLCSold$68k

+7 more not shown

FAQ

What type of real estate does this investor focus on?

Associated mortgages and deeds show activity in residential and vacant properties across Tampa-St. Petersburg, FL.

What companies is John Armbruster associated with?

John Armbruster is associated with 1 entity based on extracted signatures from public records. Key entities include REDSTONE CAPITAL LLC.

How many properties are associated with this investor?

At least 10 properties are associated with John Armbruster and the entities they control, based on signatures extracted from recorded documents connecting John Armbruster to the entities.

Which lenders has this investor worked with?

Recent mortgage activity references CHANNELSIDE MORTGAGES, RJG REAL ESTATE, and DARK STAR PROPERTIES, indicating a mix of lending relationships.

How recent is their activity?

Records show activity from 2013 through 2025, with the most recent mortgage recorded in 2017.

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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