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also known as Joe O'Brien
I have focused on the practice of family law for my entire legal career. I have opened up my own firm Opal O'Brien LLC where we do things differently than most other law firms. Our level of service is paramount, and our clients will be able to tell, above all else, that we genuinely care about our clients and getting them the best possible results.
I practice all areas of family law, including, but not limited to, divorce, paternity, child custody, visitation, removal litigation, grandparent visitation, adoption, child support, maintenance and spousal support formerly known as alimony, orders of protection, enforcing court orders and judgments, guardinaship, and post-judgment litigation, in DuPage, Kane, Will, Kendall, and Cook County. I do not generally charge my clients for any travel time or parking related expenses.
I also handle appeals. I have argued in front of the Second District Court of Appeals and I have drafted numerous briefs at the Appellate Court level.
I pride myself on keeping my clients informed and in the loop during the divorce process. Communication is paramount in having a successful attorney-client relationship. I have substantial experience trying cases and putting on hearings. I also have the skills to succesfully negotiate cases so as to avoid the expense of a full-blown trial.
My firm also handles criminal defense cases. We handle just about every criminal case, including but not limited to domestic battery, DUI, traffic tickets and other felonies.
I am proud of my recent award of emerging lawyer, a distinction earned by fewer than two percent of all lawyers licensed to practice law in Illinois who are 40 years old or less or practicing 10 years or less.
Contact me by phone or by email. My email is and my phone number is. Consultations are free (on the phone or in person). I will make myself available to meet with you after normal business hours or on weekends.
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$0 first 60 minutes
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Chat withState: Illinois
Acquired: 2008
No misconduct found
310 S. County Farm Road Suite D, Wheaton, IL, 60187
264 Client Reviews
Showing 1 - 5 of 64 reviews | Character & Conduct
Posted by James | September 03, 2025 | Hired Attorney | Divorce & Separation
I Have Been Fortunate to Have Joe O'Brien Represent Me and You Would Be Fortunate to Have him as Your Attorney
Joe has been my divorce attorney for almost 10 years (not a typo) for the actual divorce and lawfare from my ex since then. Recently, Joe won at trial for me where it was ruled that my ex was cohabitating and my maintenance therefore terminated. Cohabitation is considered difficult to prove and win. ...
Posted by Michael | February 26, 2025 | Hired Attorney
Exceptional Advocacy & Compassion - Highly recommended!
Joe is an outstanding attorney who exceptional leadership with a keen legal mind. From day one, Opal O’Brien provided clear strategic guidance, ensuring I felt confident and informed throughout the process. Joe’s responsiveness is a key strength, always available to address concerns and provide tim...
Posted by JD | October 02, 2024 | Hired Attorney | Child Custody
I'll refer Joe to anyone I know needing a family lawyer!
I was referred to Joe from a friend that used him, and I am so glad we hired Joe. He helped us navigate a year long battle with my narcissistic ex and the trying opposing counsel my ex hired. Joe is NOT a lawyer that is a money grabber and tries to extend the case as long as possible. He did ever...
Posted by Nick | September 25, 2024 | Hired Attorney | Family
The Best Attorney for Family Law - Cannot Recommend Enough
Joe is an outstanding attorney and was successful in securing my first win in my challenging family law case. Before working with Joe, I had three previous attorneys who were unable to overcome the litigious nature of the other party that would throw everything at the wall to see what would stick....
Posted by Michelle | September 03, 2024 | Hired Attorney | Alimony
Excellent attorney!
Joe was vested in my case from the start. He put in the time to research case law that led to the dismissal of my ex husband’s motion to terminate maintenance. He is dedicated, well versed in the law, professional and the communication from his office staff is excellent. Highly recommend!
"Joe is kind and compassionate attorney. While he is a zealous advocate for his client, he does take the time to consider peaceful solutions for everyone. He will not simply bend to someone's will, but he is reasonable, kind, funny, and smart. He is almost always a pleasure to work with."
"I highly endorse this lawyer. Joe is both a terrific person and an attorney. In a very difficult business, Joe practices with integrity and honesty and STILL EFFECTIVELY advocates on behalf of his clients."
Divorce and separation lawyer | Oct 29
Relationship: Fellow lawyer in community
"I endorse this lawyer."
"Mr. O'Brien is an extremely talented attorney; I did not qualify my endorsement by stating his age, as his skill level is highly advanced for his number of years in practice."
"Joe is a top notch lawyer and human being. It is rare to find an attorney who knows the law, court system, and how to relate to clients in an effective, down to earth manner. I've known Joe for many years, and have recently worked with him successfully. I recommend him highly and without hesitation."
"Mr. O'Brien is truly an expert in the area of family law. He is very competent and responds to his clients quickly and efficiently. I highly recommend Mr. O'Brien."
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2016
Emerging Lawyer, Leading Lawyers
2016
2017 Rising Stars, Super Lawyers
2015
2015 Top Contributer Award, Avvo
2015
2016 Rising Stars, Super Lawyers
2014
Client's Choice Award, Avvo
2014
Top Contributor, Avvo
2014
2014 client's choice award, Avvo
2013
Client's Choice Award, Avvo
2013
Featured Attorney, Avvo
2013
Top Contributor, Avvo
2008
Cali Award-Secured Transactions, The John Marshall Law School
2007
Dean's List, The John Marshall Law School
2007
Law Review, The John Marshall Law School
2006
Dean's List, The John Marshall Law School
2004
Phi Alpha Theta Historical Honors Society, Marquette University
2015 - Present
Partner, Opal O'Brien LLC
2010 - 2015
Attorney, Roberts PC
2008 - 2008
711 assistant, Cook County State Attorney's Office, Felony Trial Division
2008 - 2010
Attorney, Denis J. McKeown and Associates
2007 - 2007
Research Assistant, The John Marshall Law School
2007 - 2008
Legal Intern, Cook County State's Attorney's Office, Civil Actions Bureau
2007 - 2007
Law clerk, The Honorable Richard J. Elrod
2006 - 2006
Legal Intern, Cook County Public Defender
2015 - Present
Illinois State Bar Association
2014 - Present
Inns of Courtmember
2012 - Present
DuPage County Legal Access Committee
2010 - Present
DuPage County Bar Association
2011 - 2012
Young Lawyers Committee
2006 - 2007
John Marshall Law Review
Successful
successful
Successful-maintencance terminated retroactively
Successful
Successful
2008
JD - Juris Doctor
2005
BS - Bachelor of Science
2014
Alternative Fee Arrangements
2014
Family Law Intake
2011
(Assisted) Section 503(g) Trusts and "Adult" Child Support under Section 513 of the Illinois Marriage and Dissolution of Marriage Act
2007
English
Legal Answers
Can I appeal ruling to temporarily move child from her home state to different state for one semester?
22 Dec 2020
I live in Mchenry Il changing child support lowering the amount approved by my ex-wife
20 Dec 2020
Question?My divorcing spouse left the home for 4 months but want to take child for overnight but refuse to give an address! ?
16 Dec 2020