Attorney Gus Kostopoulos
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EXPERIENCED FORMER PROSECUTOR

20+ Years of Experience

OUR ATTORNEYS

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Top 100 Trial Lawyers Award in Chicago
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Illinois Bar Association
Chicago Bar Association

NOT GUILTY!

Domestic Assault

Aggravated Domestic Battery with a weapon, a felony and misdemeanor Domestic Battery.

CASE DISMISSED!

NOT GUILTY!

DUI

Client was charged with her third DUI. Gus was able to convince the court that the police violated the client’s rights.

CASE DISMISSED!

NOT GUILTY!

Theft

Client was charged with DUI, officer’s report indicated that client was driving erratically.

CASE DISMISSED!

NOT GUILTY!

Aggravated Battery

Client was charged with Aggravated Domestic Battery with a weapon.

CASE DISMISSED!

Kostopoulos Law Group, LLC

Our law firm provides the highest caliber of representation in defending people accused of criminal offenses. Our goal, in every case, is to find a way to win.

Our founder is a former prosecutor with the State’s Attorney’s Office. Our attorneys include former government trial lawyers who have litigated thousands of criminal cases ranging from misdemeanors to homicide. Only the most experienced Chicago criminal defense attorneys will ever handle our clients’ files.

We practice throughout the entire Chicago metropolitan area.

Gus Kostopoulos

Former Prosecutor, Founder

Gus is a former prosecutor and experienced trial attorney who has successfully litigated thousands of criminal cases. He has earned a reputation as a tough and aggressive attorney who achieves outstanding results for his clients. After graduating from law school as a Dean’s Scholar, he was selected to become an Assistant State’s Attorney. Working as a prosecutor, he was in charge of a team of lawyers and paralegals and thousands of open cases.

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Top 100 Trial Lawyers Award in Chicago
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Chicago Criminal Defense Lawyer Gus Kostopoulos
Chicago Criminal Defense Lawyer Rosemary Messineo

Rosemary Kostopoulos

Top Criminal Defense Lawyer

Rosemary is a skilled trial attorney who has successfully defended thousands of criminal cases. During the past thirteen years, Rosemary has earned a reputation as a tough and aggressive defense attorney who achieves outstanding results for her clients. She has successfully defended thousands of criminal cases and helped thousands of good people avoid jail and avoid criminal convictions.

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Joe Messineo

Of Counsel

Mr. Messineo received his bachelor’s degree in communications from DePaul University, Chicago, IL and his Juris Doctorate from the University of South Dakota School of Law. During law school, Mr. Messineo was a 711 law clerk at the Cook County State’s Attorney’s Office, where he assisted in several felony trials. Mr. Messineo handles criminal cases that range from traffic offenses to serious felonies.

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Chicago Criminal Defense Attorney Joe Messineo
WHAT OUR CLIENTS
ARE SAYING
"My family’s lawyer told me that you are top criminal defense lawyers. You won my felony hearing and got my felony completely dismissed! Thank you for your hard work and excellent results."
WHAT OUR CLIENTS
ARE SAYING
"A lawyer who I trust referred me to this firm. They got my felony dismissed. My brother had an unrelated case, and they got his case completely dismissed as well. They are the best defense lawyers in Dupage County!"
WHAT OUR CLIENTS
ARE SAYING
"The prosecutor was relentless about trying to convict me, but they got my case completely dismissed…These are great lawyers! I highly recommend Gus and his team to anyone in trouble."

KOSTOPOULOS LAW GROUP

About Us

Gus has over 20 years experience handling all criminal cases.  If you need assistance with any criminal matter, call us 24/7 for immediate assistance. Don’t speak to the police until you’ve spoken to us. The police are not on your side. They have one goal – get evidence and statements that they can use against you.

Kostopoulos Law Group associations include:

  • Chicago Bar Association Former State Prosecutor Now Fighting For You
  • Top Avvo Chicago Lawyers Top-Client-Rated in Domestic Violence, DUI and Criminal Defense
  • Illinois Trial Lawyers Association 
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Speak to a Chicago
Criminal Defense Lawyer Today

We know that there are many domestic violence lawyers in Dupage County, IL to choose from. By hiring us, you will have a former prosecutor in your corner.

Don’t settle for less when your liberty, family, and life are on the line. Call Dupage County criminal defense attorney Gus Kostopoulos today to discuss your case.

We offer a free consultation and are available 24/7.

Top-Rated By Clients

Your Free Case Evaluation

E-mail or Call Today

Kostopoulos Law Group

#1 Rated Domestic Violence Defense in Dupage County

Free Consultation: Call Now!