Who we are

Tenant Advisory Group, LLC is a Chicago-based commercial real estate brokerage dedicated to getting each of our clients the absolute best deal possible.

Need a reason to work with TAG?

We will give you three.
a realtor explains a chart on a graph to a client

Experience

Bill brings over 20 years of experience to every tenant he represents. He is the only tenant representative in Chicago to hold the prestigious Certified Commercial Investment Manager designation. Tina, Cathy, Diana, and the rest of the TAG team each lend their own considerable experience and unique perspectives.
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Accountability

Small and mid-sized businesses are seldom represented by large commercial real estate firms because lower commissions often fail to cover overhead costs. TAG holds ourselves accountable for providing smaller businesses with the same expertise that a larger corporation may afford.
Our goal is to represent your business.
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Integrity

We hold to an open book policy when dealing with our clients. Our axiom is that directness and honesty in communication are the factors that build client confidence. We communicate all issues upfront, in a straightforward and timely manner, so that you are fully informed during the entire leasing process.

Company History

Tenant Advisory Group founder William “Bill” Himmelstein founded Tenant Advisory Group with the belief that every tenant deserves the expertise of an experienced broker. Today, his team of commercial real estate professionals lend their broad experiences and unique perspectives to each and every client.
2008

TAG founded in July

2008
2009

Completed 20 transactions in 1 year

2009
2011

Hired first team member and saved clients a cumulative $10m

2011
2016

Surpassed $500m in total transaction volume

2016
2017

Named by Crain’s as Chicago’s Most Influential Commercial Real Estate Broker while completing 35 transactions and increasing our cumulative total client savings to $150m

2017
2019

Surpassed $1B in transaction volume with a record 45 transactions, $200m in client savings while adding a 10th team member.

2019

Meet the Team

Working for your best interest
Founder, CEO & Managing Broker

Willam Himmelstein

Read Bill's Bio
COO and Broker

Diana Himmelstein

Read Diana's Bio
Executive VP & Broker

Cathy Jama

Read Cathy's Bio
Executive VP of Client Services & Broker

Tina Crnkovich

Read Tina's Bio