O'Brien Family Law

Practice Areas 

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Resolution & Beyond

Post-Judgment & Resolution Attorney Illinois

A divorce judgment is the end of a proceeding — not the end of your legal situation. Life changes. Circumstances shift. We help you understand what's modifiable, what's enforceable, and what your options are from here.

Where you go
after the judgment.

Most people assume that once a divorce judgment is entered, the legal chapter is closed. In practice, that's rarely the case. Judgments address circumstances as they exist at a point in time. Jobs change. Incomes shift. Children grow up and their needs evolve. Co-parenting arrangements that worked at the time of divorce sometimes stop working years later.

Illinois law provides a clear path to revisit and modify prior orders when there has been a substantial change in circumstances. It also provides mechanisms to enforce orders when the other party isn't complying. And for some clients, the right path isn't the courthouse at all — it's a structured process like mediation or collaborative law that resolves disputes without litigation.

Understanding which path applies to your situation — modification, enforcement, mediation, or something else — is where we start. We don't assume every post-judgment matter requires litigation, and we don't shy away from it when it does.

Clients who come to us after a judgment is entered often feel like they're starting over. In most cases, they're not. The prior order is the baseline. Our job is to assess what's changed, advise on what's legally available, and pursue the most efficient path to an outcome that reflects your current reality — not the one that existed when the judgment was first entered.

If you're not sure whether your situation rises to the level of a modification, an enforcement action, or something else, the first conversation will help you find out.

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Two Different Situations

Resolving disputes without court — or enforcing what's already been decided.

Not every post-judgment matter involves going back to court. Understanding which situation applies to you shapes everything about what comes next.

Path One

Resolving Disputes Outside of Court

For clients who haven't yet litigated — or who want to resolve a new dispute without litigation — mediation and collaborative law offer structured alternatives. Both processes can address modifications, post-decree disagreements, and parenting disputes more efficiently and privately than contested court proceedings.

These aren't second-rate options. For the right situation, they produce durable agreements that both parties actually follow — because both parties had a hand in crafting them.

Works best when: Both parties are willing to engage in good faith, the dispute is about reaching a new agreement rather than enforcing an existing one, and privacy or cost efficiency are priorities.

Path two

Modifying or Enforcing an Existing Order

When an order needs to change — because circumstances have substantially shifted — Illinois courts can modify child support, parenting time, decision-making authority, and spousal maintenance. When an order isn't being followed, enforcement mechanisms including contempt of court are available.

These matters require returning to court, and they benefit from the same preparation and advocacy as the original proceeding. We handle them with the same rigor we bring to initial cases.

Works best when: There has been a substantial change in circumstances warranting modification, or when one party is not complying with an existing court order and voluntary resolution has failed.
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What We Handle

Resolution & beyond matters.

Each of these areas represents a distinct legal path — with its own standards, timelines, and strategic considerations.

01

Mediation & Collaborative Law

Structured, private alternatives to contested litigation — for clients who want to resolve disputes efficiently without giving a judge the final word on outcomes that affect their family.

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02

Post-Judgment Modifications

When circumstances have substantially changed since a judgment was entered, Illinois law allows modification of parenting time, decision-making, child support, and spousal maintenance.

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03

Modification of Support

Pursuing or defending changes to child support or spousal maintenance when a meaningful shift in income, employment, or family circumstances warrants a new order.

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04

Post-Decree Issues

Enforcement, contempt, and the ongoing disputes that arise after a judgment is entered — from a co-parent who won't follow the parenting plan to support that isn't being paid.

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The process for changing
a prior court order.

Modifications in Illinois follow a defined legal process — from establishing the threshold requirement to presenting evidence and obtaining a new order. Understanding what's involved helps you make an informed decision about whether to proceed.

The Threshold Requirement

Before any modification can be granted, Illinois courts require a showing of substantial change in circumstances since the original order was entered. What qualifies depends on the type of order — and meeting this threshold is often the first legal question we analyze.

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Initial Assessment

We review the existing order, understand what has changed, and advise on whether the change is likely to meet the substantial-change threshold under Illinois law. This analysis happens at the first consultation — it's the most important step.

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Filing the Petition

If the threshold is met, we file a petition to modify with the circuit court that entered the original order. The petition sets out the changed circumstances and the modification being sought.

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Discovery & Evidence

Both parties may exchange financial information, employment records, and other relevant documents. In contested cases, depositions or expert witnesses may be involved. In straightforward cases, voluntary exchange is often sufficient.

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Negotiation or Hearing

Many modification petitions resolve through negotiated agreement — often more quickly and at lower cost than a full hearing. When agreement isn't possible, the matter proceeds to an evidentiary hearing before a judge.

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New Order Entered

Once resolved — by agreement or by the court — a new order is entered that supersedes the prior one on the modified issues. This order carries the same enforceability as the original.

"A judgment addresses circumstances as they exist at a point in time. Life doesn't stop there."

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Common Questions

Questions clients ask before they call.

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.

What qualifies as a substantial change in circumstances in Illinois?

The threshold varies depending on the type of order being modified. For child support, Illinois law presumes a substantial change when the existing order would change by more than 20% under current guidelines — or when three years have passed since the last order. For parenting time, courts look for a meaningful change in the child's or a parent's circumstances. For spousal maintenance, significant changes in income, employment status, or cohabitation can qualify. The analysis is fact-specific, and we assess it carefully at the outset — pursuing a modification when the threshold isn't met wastes time and money.

What's the difference between mediation and collaborative law?

In mediation, a neutral third-party mediator helps both parties negotiate an agreement — but the mediator doesn't represent either party or make decisions. Both parties may have their own attorneys advising them outside of sessions. In collaborative law, each party retains a collaboratively-trained attorney, and everyone — both parties and both attorneys — agrees in writing to resolve the matter outside of court. If the collaborative process breaks down, both attorneys must withdraw and the parties start over with new counsel. Collaborative law is a deeper commitment to the process; mediation is more flexible. Which works better depends on the dynamic between the parties and the nature of the dispute.

What happens if my ex isn't paying court-ordered support?

Non-payment of court-ordered child support or spousal maintenance is a serious matter in Illinois. The complying party can file a petition for rule to show cause — essentially a contempt action. If the court finds the non-paying party in contempt, consequences can include wage garnishment, income withholding orders, suspension of driver's license or professional licenses, interception of tax refunds, and in serious cases, jail time. We also pursue enforcement through the Illinois Child Support Services when appropriate. Document non-payment carefully — bank records, payment history, and correspondence all matter in enforcement proceedings.

Can spousal maintenance be terminated or reduced?

Yes — maintenance is modifiable or terminable upon a substantial change in circumstances, unless the original agreement expressly made it non-modifiable. Cohabitation of the receiving spouse with another person on a resident, continuing, conjugal basis is grounds for termination under Illinois law. A significant change in either party's income — upward or downward — can support a modification. Retirement may also qualify depending on the circumstances. If the maintenance award was part of a settlement agreement that labeled it "non-modifiable," the court's ability to revisit it is more limited — the specific language of the agreement matters significantly.

Is mediation required before going back to court in Illinois?

It depends on the county and the type of dispute. Many Illinois circuit courts — including DuPage County — require mediation for parenting disputes before they will schedule a hearing on contested parenting issues. For financial matters like support modifications, mediation may be encouraged but is less consistently required. The local rules of the specific court where your case is pending govern whether and when mediation is mandatory. We know the practices and requirements of each courthouse we appear in regularly, and we advise clients accordingly from the outset.

How long does a post-judgment modification take?

An agreed modification — where both parties reach a written agreement — can be finalized relatively quickly once the paperwork is drafted and filed, sometimes within a few weeks to a couple of months depending on court scheduling. A contested modification that requires a hearing typically takes longer — anywhere from several months to over a year depending on the complexity of the issues, the availability of the court, and whether discovery is necessary. We give clients realistic timelines at the outset and keep them updated as the matter progresses.
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Where we practice

Post-Judgment Attorney Serving Chicagoland.

O'Brien Family Law handles post-judgment modifications, enforcement, mediation, and post-decree matters throughout Cook, DuPage, Kane, Kendall, Lake, and Will County. We appear regularly in the circuit courts of each county — and we understand the local rules and judicial expectations that govern post-judgment proceedings in each courthouse.

Whether your matter originated in Wheaton, Geneva, Joliet, Waukegan, or Yorkville, we're positioned to handle what comes next — efficiently and without requiring you to start the attorney relationship from scratch.

Not sure if your situation warrants legal action?

That's exactly what the first conversation is for. We'll assess your situation honestly — including whether it's worth pursuing — and give you a clear picture of your options.

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(630) 755-3442

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