A Civilized Approach to Divorce in DuPage County

Helping Families in DuPage and Cook County Move Forward with Dignity and Respect.

Attorney Kari L. Cornelison

Our Services

Custom legal solutions designed to minimize conflict and prioritize your future.

Most DuPage Divorces Never Need a Judge

Every divorce filed in DuPage County is heard at the Judicial Center in Wheaton, and very few of them are actually decided there. Most settle. What differs is how much time, money and goodwill get spent first, and that is largely set in the opening weeks, before anyone has filed anything.

There are four routes that keep a case out of a courtroom fight. They are not interchangeable.

Two people shaking hands across a desk after settling a case

Mediation

A guided negotiation with a neutral third party instead of a judge. It works when both people want the same outcome and disagree about how to reach it. It does not work when one spouse is hiding money.

Collaborative divorce

Governed by the Illinois Collaborative Process Act, 750 ILCS 90. Both spouses and both attorneys sign an agreement committing to settle. If it fails, both attorneys withdraw and you start over with new counsel. That is a genuine cost, and it is also what gives everyone a stake in making it work.

Cooperative divorce

The same out-of-court intent as the collaborative process, with less formality and no disqualification clause. Nobody has to withdraw if talks stall, so the structure costs you less when it does not work. In practice it starts faster, because there is less paperwork before the negotiating begins.

One-lawyer divorce

One attorney prepares the paperwork for a couple who have already agreed on everything. It is the quickest and cheapest route here, and the narrowest. It only works when the agreement is genuinely settled and neither person needs separate advice, and we will say so when that is not the case.

Focused on Solutions That Work for You

Why Choose
Kulerski & Cornelison?

At Kulerski & Cornelison, our practice is exclusively dedicated to family law, giving us focused expertise that benefits every client we serve. We have a deep understanding of Illinois divorce laws, which allows us to offer strategic, personalized solutions tailored to your circumstances. Our team emphasizes a non-court approach, favoring negotiation, mediation, and collaborative law to resolve disputes with minimal conflict. We view litigation as a last resort and prioritize peaceful resolutions that protect your rights and preserve your well-being. Every client receives personalized attention, and we take the time to truly understand your goals and concerns. With Kulerski & Cornelison, you’re not just another case. You’re a priority.

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Meet Kari L. Cornelison

Kari has practiced family law in the Chicago area since 1996. She is a court-certified mediator, a trained collaborative practitioner, and an experienced divorce litigator with years of trial work in the DuPage and Cook County courts behind her.

The trial experience is deliberate rather than incidental. Lawyers who only settle cases tend to overvalue settlement, and lawyers who only try cases tend to undervalue it. Having done both, she can tell you what a judge in Wheaton is realistically likely to do with your facts, and then let you decide whether the offer on the table beats it.

You work with Kari. Not an associate who inherits the file in month eight and needs the whole story again.

Collaborative Divorce Illinois Fellow 2026 badge

What Our Clients Say

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CJ Drikakis profile picture
CJ Drikakis
177 days ago
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Kari took time to answer all my questions, spoke to me as a person and not a client. I would highly recommend.
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Liz Bruhn profile picture
Liz Bruhn
268 days ago
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Kari and her staff were great in guiding me, and giving me clear, realistic expectations for the difficult process of a non-cooperative divorce. She was excellent in managing my emotions and feelings when I was upset, as well as answering my many MANY questions about how the process works. Their team was skilled and very knowledgeable about the judges and courts in DuPage county. The communicated effectively with the other counsel. I was definitely thankful to have them on my side for my divorce.
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Mykel Washington profile picture
Mykel Washington
469 days ago
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Outstanding legal representation I received. I recommend this law firm for all family legal matters.
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Drew Nastal profile picture
Drew Nastal
560 days ago
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The divorce process is not pleasant, no matter how amicable your divorce is. Kari and Jeanna made it better. I was educated, prepared and informed the entire time. They not only handled the entire process for our side, (and seemingly the others), she saved me time and money by being efficient. I was quickly confident in her take charge approach despite being the respondent in the case. I would highly recommend Kari Cornelison for any legal needs she provides, as would her peers; Kari was recommended to me by an attorney friend who has been in court with her- that should speak to itself. Thank you, Kari for making an unpleasant life event as good as it can be.
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Shirley Fishwick profile picture
Shirley Fishwick
575 days ago
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Easy fast excellent service!!! Kari is the best and I HIGHLY recommend her!! Jenna is amazing!
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Shari Lambert profile picture
Shari Lambert
863 days ago
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I would highly recommend this firm to handle your divorce agreement. Kari and Jena were extremely efficient and guided me in all of my decisions through a difficult time. Kari always answered all of my questions and concerns throughout the process. The fee is reasonable and there were no additional or unexpected costs. They went above and beyond to get the agreement processed quickly.
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Robert Maczkowski profile picture
Robert Maczkowski
933 days ago
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Couldn’t have asked for a better law firm to guide me through a difficult situation.
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Amber Ross profile picture
Amber Ross
939 days ago
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Kari is a very knowledgeable lawyer and straight to the point. Kari handles business so you don’t have to! Service received was very fast and thorough. Would use again if I needed too.
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Antoinetta Parker profile picture
Antoinetta Parker
1010 days ago
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Reliable and caring service! Excellent customer service! They explain everything step by step, even before you have to pay to make sure you understand what you're being billed for. I'd definitely recommend them, and use them again!
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Robert Weiand profile picture
Robert Weiand
1013 days ago
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We tried to get an uncontested divorce using Legal Zoom only to find the Illinois court system makes it pretty hard to do a divorce without representation. Every month there would be a hearing only to learn there was something else we needed...after 3 delays I reached out to Kulerski and Cornelison. For a flat fee; 60 days later the divorce was done and neither of us went to court. The service and result was awesome!! Thank you!!

Straight answers before you commit to anything

Questions We Get Before the First Meeting

Do we have to go to court?

Almost certainly not for a trial. You will still have court dates, because a judge has to enter the judgment and approve the parenting plan, but that is a prove-up rather than a fight. Most DuPage cases that settle involve two or three short appearances in Wheaton.

How long does a DuPage divorce take?

An uncontested case with the agreement already in place can be finished in a few months. A contested one, with disputed income or a fought parenting schedule, can run past a year. The variable is rarely the court’s calendar. It is how long the two of you take to agree.

What actually happens first?

We talk about your situation before anyone talks about filing. That includes the honest question of whether your spouse is likely to engage in a non-court process, because the answer shapes everything that follows.

A couple meeting with a family law attorney at a table

Where Our Clients Come From

Our office is in Oakbrook Terrace, and every DuPage case runs through the same courthouse in Wheaton, so where you live inside the county affects the drive far more than it affects the case.

We work with families in Downers Grove, Westmont, Hinsdale, Clarendon Hills, Oak Brook, Wheaton and Naperville, along with Lisle, Darien, Willowbrook, Woodridge, Lombard, Villa Park and Elmhurst, and across the line into Cook County.

If your village is not on that list, it does not matter. We serve communities across DuPage County, and the courthouse is the same one.

Aerial view of the historic DuPage County Courthouse and downtown Wheaton, Illinois