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Denice A. Gierach

Business Attorney at Naperville, IL

Not yet reviewed
  • State Years
    Arizona - AZ 27 years
    Illinois - IL 47 years
  • Licensed for 27 years
    State AZ
    Acquired 1996
    Active No misconduct found
  • Licensed for 47 years
    State IL
    Acquired 1976
    Active and Authorized to Practice Law No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Denice

Learn Denice’s areas of practice.

Denice A. Gierach is a business and estate planning lawyer with more than 30 years of experience representing business owners in the formation, franchising, and dissolution of businesses; contract negotiation and reviews; business litigation; partnership disputes, succession planning; commercial real estate; and aiding individuals in matters of advanced estate planning, and charitable giving.

She also leads her firm’s YourOGC program providing Outsourced General Counsel services to small and medium size businesses to assist them in preventing legal issues, providing proper planning for reaching goals, and insight into issues preventing them from further success.

As a Certified Public Accountant with a master's degree in Management from Northwestern University, Ms. Gierach also practices in the areas of Income Taxation, Federal Estate Taxation, and varied Real Estate Law.

She is also an experienced Estate Planning attorney who specializes in complicated, and high-end estates. She provides full planning services including wills, trusts, powers of attorney, business succession plans, and other needed items that help avoid probate and unnecessary taxes, as well as making sure clients wishes are fulfilled properly.


Ms. Gierach began her career in accounting working for several CPA firms in Chicago. She then worked for a law firm in Chicago for almost 10 years at the start of her legal career. For almost 20 years, she practiced as Gierach & Associates and then founded the Gierach Law Firm to provide better service to her clients.

Ms. Gierach has provided a wide array of legal services to individuals and small and mid-sized companies. As the previous owner of several businesses herself, including a manufacturing company and real estate development company, she provides a well-rounded view to clients about business issues across many areas.

She is a member of the Illinois State Bar Association, Chicago Bar Association, DuPage County Bar Association, and Arizona State Bar Association. She is licensed to practice in both Illinois and Arizona and practices before the Illinois circuit courts, Illinois Appellate Court, Federal Tax Court, Federal District Court for the Northern District of Illinois, the Seventh Circuit Court of Appeals for the Federal Court, and the U.S. Supreme Court.

The Chicago area-based newspaper The Business Ledger, named Denice Gierach as one of 20 "Influential Women in Business.”


Ms. Gierach has contributed to several publications over the years including the Naperville Sun and The Business Ledger. She also is a requested guest on many podcasts and has produced dozens of informative YouTube videos, as well as blog posts. (Links can be found on the Gierach Law Firm website.)


As an engaged member of her community, Ms. Gierach was an active member of the Exchange Club and Rotary Club of Naperville for many years. She also previously served as the Director for the Heritage YMCA, as President and Director of the Naperville Area Humane Society, and as Director and Chair of the Board for the DuPage Community Foundation. She is a current member of the Naperville Area Chamber of Commerce.

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The Gierach Law Firm
1776 Legacy Circle
Suite 104
Naperville, IL, 60563-1673

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  • Retainer Always
Payment methods
Cash, Check


AVVO RATING 8.8 (Excellent)

Work Experience

  • Principal
  • Gierach Law Firm
  • 1990 - Present


  • Northwestern University
  • MA - Masters
  • 1985
  • Chicago-Kent College of Law Illinois Institute of Technology
  • JD - Juris Doctor
  • 1976
  • University of Illinois, Champaign Urbana, Illinois
  • C.P.A.
  • 1975


  • DuPage County Bar Association
  • Committee Chairman
  • 1999 - Present
  • State Bar of Arizona
  • Member
  • 1986 - Present
  • Illinois State Bar Association
  • Member
  • 1976 - Present
  • Chicago Bar Association
  • Member
  • 1976 - Present
  • DuPage County Bar Association
  • Chair
  • 2009 - 2010
View all associations

Languages Spoken

  • French

Honors and Awards

  • Preeminent 5.0 out of 5
  • Martindale-Hubbell
  • 2011
  • Client Reviewed
  • Martindale-Hubbell
  • 2010
  • Named One of Twenty "Influential Women in Business" -
  • The Business Ledger
  • 2008
  • CPA
  • University of Illinois
  • 1975
View all awards


  • The Daily Herald Business Ledger
  • Who's Who in Business Law
  • 2015
  • The Business Ledger
  • The importance of a team to the growth of your business
  • 2010
  • The Business Ledger
  • The trend in non-competition agreements
  • 2010
  • The Naperville Sun
  • The new ADA regs change the employment landscape
  • 2010
  • The Business Ledger
  • Nursing home taken to task
  • 2010
  • The Business Ledger
  • Tax planning for the year end
  • 2009
  • The Naperville Sun
  • Beware of advertisements on tax reductions
  • 2009
  • The Business Ledger
  • So you are retired - now what?
  • 2009
  • The Business Ledger
  • Tidbits from the law (Oct '09)
  • 2009
  • The Business Ledger
  • Is this a good time to transfer your wealth to your children?
  • 2009
  • The Business Ledger
  • Should you buy a franchise?
  • 2009
  • The Business Ledger
  • Taking care of mom and dad when they are elderly
  • 2009
  • The Business Ledger
  • Some Medicare recipients will see a rise in premiums in 2010
  • 2009
  • The Business Ledger
  • Tidbits from the law (Nov '09)
  • 2009
View all publications

Attorney endorsements

Received (2)
Given (3)
Endorse Denice
Estate planning Attorney | Dec 10
Relationship: Fellow lawyer in community
"I endorse this lawyer. Denise is very knowledgeable in the area of estate planning and tax, as well as other areas of law."
Estate planning Attorney | Feb 01
Relationship: Fellow lawyer in community
"I endorse this lawyer."
Divorce and separation
Criminal defense

Avvo Contributions

This attorney hasn't created any legal answers in Q&A or legal guides recently on Avvo.

Naperville Business Lawyer Denice A. Gierach
Denice A. Gierach
Business Attorney
Naperville, IL
Licensed for 47 years