Illinois Family Law Firm

The Family Law Firm with
Proven Outcomes for Any Situation

Hire a family law team with proven systems to handle any situation and pursue the best possible outcome. People trust us during some of the hardest moments of their lives, and it starts with a free consultation that provides clear solutions in 30 minutes or less.

Recognized By

Our Practice Areas

The Right Family Law Attorney
For Your Case

We deal with the full spectrum of family law, so you're not a random case to us. Every matter goes to the attorney with the right background, courtroom experience, and local knowledge, and we walk you through your options before we ever touch the filing.

Best Family Law Firm 2023 award
Divorce

From First
Filing to Final Decree

Straightforward or layered with a business, real estate, retirement accounts, or maintenance questions, we move at the pace that fits the case. We handle uncontested filings as readily as long-form contested matters, and we negotiate before we litigate when that produces the better outcome.

Divorce Services
Uncontested Divorce
Contested Divorce
No-Fault Divorce
Family Matters

Protecting What
Matters Most at Home

Family law reaches into the most personal parts of life: your children, your safety, your standing as a parent. We handle custody and parenting time, LGBTQ family matters, and emergency orders of protection with steady, practical guidance, whether your case settles at the table or is decided in court.

Family Law
Child Custody
LGBTQ Family Law
Order of Protection
Best Family Law Firm 2023 award
Best Family Law Firm 2023 award
Alternative Resolution

Resolved on Your Terms, Not the Court's

Not every matter belongs in a courtroom. Through mediation, the collaborative process, and clear prenuptial and postnuptial agreements, we resolve things with less conflict and cost. When the estate is complex, we bring the financial rigor a high net worth case demands, and you keep control.

Collaborative Divorce
Divorce Mediation
High Net Worth Divorce
Prenuptials & Postnuptials
Our Team

Meet The Team Families Trust
During Difficult Times

We help families navigate divorce, custody, child support, mediation, LGBTQ family law, and complex financial matters. Our approach is direct: clear communication, practical strategy, and a steady hand through every decision.

Olivia Long, Founder & Principal Attorney at O. Long Law, LLC
Olivia Long
Founder & Principal Attorney

Olivia practices family law to help others add value to their lives.

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Alexandra Neukirch, Of Counsel at O. Long Law, LLC
Alexandra Neukirch
Of Counsel

Alex became a lawyer to help clients through life's toughest moments.

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Jessica Mansbacher Kibbe, Family Law Attorney at O. Long Law, LLC
Jessica Mansbacher Kibbe
Family Law Attorney

Jessica practices family law to be a steadfast guide through challenging times.

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Legal Assistant

Lizbeth Reyes-Guzman

Francis McGee, Executive Assistant at O. Long Law, LLC
Executive Assistant

Francis McGee

Ellie Zwart, Paralegal at O. Long Law, LLC
Paralegal

Ellie Zwart

Nia Gray, Office Manager at O. Long Law, LLC
Office Manager

Nia Gray

Maddie Wakley, Paralegal Manager at O. Long Law, LLC
Paralegal Manager

Maddie Wakley

Why O. Long Law?

We Deal With Everything Family Law
So You're Not A Random Case

What to expect from the first call forward.

Have You Handled Cases Like Mine Before?

Whether you're facing divorce, child custody, support issues, mediation, a prenuptial agreement, an LGBTQ family law matter, or a high-conflict situation, chances are we've helped someone navigate something similar.

We work with families across the full range of family law, and every case carries its own concerns, goals, and emotions.

You won't be treated like a file number. We take the time to understand your situation and build a strategy around what matters most to you.

What Is It Like To Work With Your Firm?

Clients often come to us feeling overwhelmed, uncertain, and unsure what to do next.
Our job is to bring clarity. We believe family law clients deserve:

Honest answers, clear communication, fast responses, strategic guidance, and compassionate support. Throughout your case, you’ll know where things stand, what options are available, and what the next steps look like.

Our goal is simple: help you feel informed, supported, and confident during difficult decisions.

What Happens During The First Consultation?

Your consultation is a confidential, no-pressure conversation designed to help you better understand your situation and your options. During the meeting we’ll:
-Learn about your goals and concerns.
-Review the facts of your case.
-Discuss possible legal strategies.
-Explain what the process may look like.
-Identify potential risks and opportunities.
-Answer your questions clearly.

By the end of the conversation, most clients leave feeling relieved because they finally have a plan and know what comes next.

How We Work

Get A Clear Roadmap
So You Never Feel Lost

01

The First Conversation

A thirty-minute consultation, no charge, no pressure. We listen to what's going on, ask the questions that surface the real issues, and outline the legal options on the table. By the end, you'll have a clear sense of whether we're the right fit and what your next move looks like.

02

The Strategy Map

Once we're engaged, we go deeper. Financial records, timelines, communications, the parts of the situation that didn't fit into thirty minutes. From there we draft a written case plan with realistic milestones, communication norms, and the strategy we'll lead with first.

03

The Active Case

Negotiation, mediation, drafting, court appearances when they're necessary. You'll hear from us before each move and after each result. Decisions are yours, the recommendations are ours, and the timing belongs to the situation, not a billing target.

04

The Resolution

Final agreement, court order, decree, or whatever the case calls for. We walk you through what changes the day it's signed, what to watch for in the months after, and what to bring back to us if life shifts again. Many of our best client relationships have started with one case and grown from there.

Free Consultation

Get Your Roadmap and Clear Path Forward

A consultation with us is a private conversation about your situation. We'll explain how Illinois family law applies to your case, walk you through your real options, and send you out with a roadmap, whether you hire us or not.

Reviews

Trusted During Difficult Times

Real clients on what it's like to have us in their corner.

"I have had the pleasure of knowing and working with Attorney Olivia St. Clair Long for almost a decade. I cannot say enough positive things about her as a person, how she practices law, and her character. I team up with her so I do not have to go against her, and her work is second to none! While Olivia will fight hard for her clients, she is also able to switch over to settlement mode with the same tenacity and in the interests of gaining the legal relief her clients request. Being in her field of law is quite emotional. I am impressed at how compassionate Olivia is with her clients, especially given the high stress matters she is retained therein"
"I had an excellent experience working with the team at O. Long Law, during a very challenging time in my life. The attorneys and paralegals were knowledgeable, compassionate, and always took the time to explain every step of the divorce process clearly. They handled my case with professionalism and made me feel confident that my best interests were being protected. Communication was consistent and timely, which helped reduce a lot of my stress. I would highly recommend this firm to anyone in need of reliable and supportive legal representation."
"Jessica was my representing attorney for my prenup. After being initially intimidated by the idea of a prenup, I felt comfortable talking with her. She is amazingly intelligent and personable. She went line-by-line through the draft prenup, explained everything to me, and made edits based on my feedback. She even thought ahead on things that I wouldn’t have even considered. I would recommend her to any of my friends needing representation."
"Olivia gave me advice in a high-conflict divorce situation - pro bono publico- and offered sound, clear and loving guidance. It was so clear to me that she is infinitely knowledgable and clear-headed. Strongly recommend. If you are part of a queer family, recommendation is even stronger, though I'm certain she'd represent everyone with care and honor."
Get Clear Answers And A Roadmap Forward

What To Expect During Your Free Consultation.

Whether you're ready to move forward or just have questions, the first conversation is free, confidential, and on your terms. Tell us what's going on, and we'll outline what comes next.

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FAQs

Common questions that come up before, during, and after a first consultation. If you don't see yours here, send it over. We answer every message.

How Much Does a Family Law Case Cost?

It depends on what the case requires. Most family law matters bill hourly against an initial retainer, with the actual cost driven by how contested the issues are, how many assets need to be valued or divided, and whether the case goes to trial. Uncontested divorces and prenups often work on flat fees. At the first consultation, we walk you through the realistic cost range based on your specific situation, so you can plan with full information instead of guessing.

Should I File First, or Wait for My Spouse?

It's situational, and it matters more than most people realize. Filing first gives you some procedural advantages, including choosing the county where the case is heard and presenting your version of the facts first. It can also signal commitment, which sometimes drives settlement faster. But there are situations where waiting is smarter, especially if you want time to gather financial information before your spouse is on notice. We talk through the tradeoffs at the consultation before you commit either way.

Should I Move Out of the House Before Filing?

Usually not, and never without legal advice first. Moving out can hurt your custody position if children are involved, and it can affect how the court views your claim to the marital residence. There are exceptions, including situations involving safety. If you're thinking about it, talk to us before you do anything, even temporarily.

How Long Will My Case Take?

It depends on the issues and the level of agreement between the parties. Uncontested divorces can finalize in 30 to 90 days. Contested matters with custody, business assets, or significant financial disputes usually run 6 to 18 months, sometimes longer if a trial is necessary. We give you a realistic timeline at the first consultation based on what your case actually looks like, so you can plan around it.

What If My Spouse Won't Cooperate?

Family law cases move forward even when one party refuses to engage. Illinois law has procedures for compelling disclosure of finances, requiring court appearances, and entering default judgment when someone refuses to participate. If your spouse is hiding assets, ignoring orders, or refusing to negotiate, we use the tools the court provides to keep the case on track. Refusing to cooperate slows things down. It does not stop a divorce.

Do You Handle Cases Outside the North Shore?

Yes. We're based in Evanston with active matters across Cook, Lake, McHenry, and DuPage counties. We take cases across Illinois when the situation calls for it, and we know the procedural quirks of the courts where your case is most likely to be filed.

Will My Divorce Be Part of the Public Record?

Most divorce filings in Illinois are part of the public court record, including the petition, settlement agreement, and final judgment. Sensitive details like financial affidavits and parenting evaluations can often be sealed or filed under a protected designation, especially when children, business interests, or safety concerns are involved. We talk through what's likely to be public, what can be kept private, and how to file in a way that protects what needs protecting.

Do You Work with Same-Sex Couples and LGBTQ Families?

Yes. Family formation, adoption, prenups, and divorce for LGBTQ couples and families are part of our core practice. We know which Illinois protections apply automatically, which gaps need closing through second-parent adoption or contract, and which federal questions remain in motion. We handle these matters with the same depth and discretion as any other case.

Will I Have to Pay or Receive Spousal Support?

It depends on the length of the marriage, the income gap between the parties, and several other factors specific to your situation. Illinois uses statutory guidelines that produce a presumptive amount and duration, though courts can deviate when the circumstances justify it. At the first consultation, we run the numbers based on your actual income and assets so you understand the realistic range before negotiations start. Spousal support is also one of the issues that can be addressed in advance through a prenup or postnup if you're not yet married.

Can My Spouse and I Use the Same Attorney to Save Money?

No. An attorney can only represent one party in a divorce. Even when you and your spouse fully agree on everything, the lawyer you hire represents you, not both of you. Your spouse can choose to represent themselves or hire their own attorney, and we can still finalize an uncontested divorce efficiently in either scenario. We can also point you toward mediators or limited-scope arrangements that keep overall costs down when both parties want to stay cooperative.

Still Have Questions?

Reach out anytime. We respond quickly, and there is never pressure to commit. Send us your question and we will get you a clear answer.

O. Long Law, LLC logo

Let's Talk About What Comes Next

Whatever you're facing, you don't have to sort it out alone. Tell us what's going on and we'll help you understand your options and the path forward. Your first conversation is free and confidential.