Investor profile - IL

Michael Brennan

Michael Brennan is a real estate investor and operator based in Chicago, IL-IN-WI. Public filings show activity across 58 properties held through 50 holding companies. Recent mortgage relationships include CIBC Bank USA, Athene Annuity and Life Company, and Citi.

Contact info available

Michael's Activity

As of January 2026, public records show approximately $4.5B in recorded mortgage exposure linked to this investor across at least 73 mortgage filings and 58 properties held through 50 holding companies. Activity appears concentrated in industrial and office assets recorded between 2015 and 2025.

Primary Geography

Chicago, IL-IN-WI

ZIP codes: 60148, 60191, 60007, 60056, and 60714

Most recorded activity for this investor appears in LOMBARD, WOOD DALE, ELK GROVE, MOUNT PROSPECT, and NILES.

Property Type Breakdown

Industrial73%
Office8%
Commercial8%
Other10%

Associated Entities (50)

YORKBROOK IL OWNER 1 LLC

IL · 0 properties · 17 mortgages

active
Incorporated on 07/11/2024 in ILMailing Address: 10275 WEST HIGGINS ROAD SUITE 810, ROSEMONT, 60018, IL, United States
ISF CHICAGO LLC

IL · 2 properties · 11 mortgages

active
Incorporated on 04/14/2021 in ILMailing Address: 10275 W HIGGINS RD #810, ROSEMONT, 60018, IL, United States

+48 more not shown

Mortgages (73)

DateAmountStatusLenderBorrowerAddress
10/28/2025$345.0MOpenAthene Annuity and Life Company2101 DRALLE RD OWNER LLC2101 DRALLE RD,
UNIVERSITY PARK, IL 60484
10/27/2025$345.0MOpenAthene Annuity and Life Company1600 INDUSTRIAL DR OWNER LLC1600 N INDUSTRIAL DR,
MCHENRY, IL 60050

+71 more not shown

Owned Properties (58)

AddressDeeded ownerStatusConsideration
1515 W FULLERTON AVE,
ADDISON, IL 60101
1515 FULLERTON LLCOwns - 6 mos$11.7M
1800 LANDMEIER RD,
ELK GROVE, IL 60007
REGENT 5 IL OWNER LLCOwns - 9 mos$125k

+56 more not shown

FAQ

What type of real estate does this investor focus on?

Associated mortgages and deeds show activity in industrial, office, and commercial properties across Chicago, IL-IN-WI.

What companies is Michael Brennan associated with?

Michael Brennan is associated with 50 entities based on extracted signatures from public records. Key entities include YORKBROOK IL OWNER 1 LLC, ISF CHICAGO LLC, CHI MIL PORTFOLIO LLC, UB II LLC, and DB CI I LLC.

How many properties are associated with this investor?

At least 58 properties are associated with Michael Brennan and the entities they control, based on signatures extracted from recorded documents connecting Michael Brennan to the entities.

Which lenders has this investor worked with?

Recent mortgage activity references CIBC Bank USA, Athene Annuity and Life Company, and Citi, indicating a mix of lending relationships.

How recent is their activity?

Records show activity from 2015 through 2025, with the most recent mortgage recorded in 2025.

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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