Practice AreasÂ
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Divorce & Separation
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Dissolution of Marriage
Dissolution of Marriage
Attorney in Illinois
As a DuPage County divorce attorney, I know that an Illinois divorce involves decisions about property, finances, parenting, and support that will define your life going forward. The process rewards preparation — and punishes improvisation.
No-fault doesn't mean simple.
Illinois is a no-fault divorce state — which means neither spouse has to prove wrongdoing to end the marriage. But no-fault doesn't mean uncomplicated. Dissolution of marriage under Illinois law is a formal legal process that determines how marital property is divided, whether spousal maintenance is awarded under 750 ILCS 5/504, and — when children are involved — how parenting time and decision-making authority are allocated.
These determinations carry real weight. A property settlement entered by an Illinois judge is largely final. A maintenance award shapes both spouses' financial lives for years. A parenting arrangement becomes the baseline from which any future modification must depart. Getting the initial outcome right matters far more than most people realize when they're in the middle of it.
We take the time to understand your full financial picture and your priorities before we advise on strategy. That means honest assessments of what Illinois courts are likely to do, realistic timelines, and a plan built around your actual situation — not a template applied regardless of the facts.
Under 750 ILCS 5/503, Illinois divides marital property equitably — not necessarily equally. Courts consider the length of the marriage, each spouse's economic circumstances, contributions to marital and non-marital property, and any valid prenuptial agreement. Equitable means fair given the specific facts of your case — which is why how your attorney builds and presents that case matters significantly to the outcome.
The dissolution process in Illinois courts.
Most clients come to us with a general sense of what divorce involves but limited clarity on how it actually unfolds. Here is what the process looks like from first consultation through final judgment — and where the critical decision points are.
Path 01
Filing & Service
The dissolution petition is filed with the circuit court in the county where you or your spouse resides. Under 750 ILCS 5/401(a), Illinois requires a six-month separation period as proof of irreconcilable differences — though this period can be waived by agreement of both spouses. Your spouse is formally served and given time to respond. Temporary orders may be entered covering support, property use, and parenting while the case proceeds.
Path 02
Financial Disclosure & Discovery
Both spouses are required to fully disclose financial information — income, assets, debts, and expenses. In complex cases, this involves formal discovery: subpoenas, interrogatories, depositions, and expert witnesses. In straightforward cases, voluntary document exchange is often sufficient. The completeness of this process shapes everything that follows.
Path 03
Negotiation, Mediation or Trial
Most Illinois divorces resolve through negotiated settlement. We approach every negotiation prepared to try the case — which consistently produces better results at the table. When agreement isn't possible, we are fully prepared to present your case before the court with jurisdiction over your matter.
On timelines: An uncontested divorce with full agreement on all issues can be finalized in two to four months. Contested cases involving property disputes, business valuations, or custody disagreements typically take twelve to twenty-four months — sometimes longer when complexity warrants. We'll give you a realistic projection at your first consultation.
Property Division
What gets divided — and how Illinois decides.
Property division is often the most consequential part of an Illinois divorce. The decisions made now — about real estate, retirement accounts, business interests, and debt allocation — are largely final once the judgment is entered. Here's what's typically on the table and how Illinois courts approach each category.
What's Subject to Division
Marital property includes most assets and debts acquired during the marriage — regardless of whose name is on the title. Real estate, retirement accounts, investment portfolios, business interests, and vehicles acquired during the marriage are generally marital. Gifts and inheritances received by one spouse are non-marital, as are assets owned before the marriage — though commingling can complicate these distinctions significantly.
What You Keep — If You Can Prove It
Non-marital property is yours to keep — but you have to document it. Assets owned before the marriage, inheritance, and gifts to one spouse are non-marital under Illinois law. The challenge is tracing: over a long marriage, non-marital assets are often commingled with marital ones, and the burden of proving what remains non-marital falls on the spouse claiming it. We build this documentation early.
The Marital Home & Other Properties
The marital home is often the most emotionally and financially significant asset in a divorce. Options include sale and division of proceeds, one spouse buying out the other's equity, or a deferred sale arrangement in cases with minor children. Each option carries different financial and tax implications that we analyze as part of your overall settlement strategy.
Accounts That Require Special Handling
Retirement accounts — 401(k)s, pensions, IRAs — are marital property to the extent they were contributed to during the marriage. Dividing them without properly drafted orders can trigger significant tax consequences and penalties. Each account type requires its own approach, and errors here are expensive and difficult to fix after the fact.
What you can expect from O'Brien Family Law.
Divorce representation isn't just about knowing the law — it's about building the right strategy for your specific situation, preparing more thoroughly than the other side, and giving you an honest assessment at every stage.
01
Full Picture Before Strategy
We understand your complete financial situation — assets, debts, income, and priorities — before advising on approach. Strategy without facts isn't strategy.
02
Honest Assessments
We tell you what Illinois courts are likely to do — including the weaknesses in your position. Clients who understand their realistic range of outcomes make better decisions.
Built to Negotiate
We build every file as if it will be tried — which consistently produces better negotiated outcomes. Opposing counsel knows the difference between a prepared attorney and an unprepared one.
04
Ready for Trial
When settlement isn't in your interest, we go to trial. We regularly appear across the counties we serve — local familiarity that shapes how we prepare and present every case.
Through the Judgment
Once the judgment is entered, we help ensure it's properly implemented — title transfers, compliance, enforcement, and modifications as life continues to change.
What clients ask before their first consultation.
These are the questions prospective clients most often raise before their first consultation. We've answered them honestly — because informed clients make better decisions, and that's better for everyone.
Does it matter who files for divorce first in Illinois?
Can we agree on everything and avoid a contested hearing?
How is debt divided in an Illinois divorce?
Will my divorce be public record in Illinois?
What happens to the house when we divorce?
What does a divorce cost in Illinois?
"Getting the initial judgment right matters far more than most people realize when they're in the middle of it."
Service Area
Dissolution of Marriage Attorney in Chicagoland
O'Brien Family Law handles dissolution of marriage proceedings throughout Cook, DuPage, Kane, Kendall, Lake, and Will County. We regularly appear in the circuit courts of each county — bringing local familiarity that shapes every strategic decision from the first filing through the final judgment.
Whether your case is in Wheaton, Naperville, Aurora, Joliet, or any of the surrounding communities, we're positioned to represent you effectively from the outset.
The first step is just a conversation.
No forms to fill out before we'll talk to you. No obligation after. We'll listen to your situation, tell you where you stand, and let you decide what comes next.
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