Chicago Divorce

Civil Union and

Family Law Firm

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Chicago’s Leading Boutique Firm Concentrating Solely on Family Law and Divorce Matters

The Law Firm of Martin Osinski is a law firm solely dedicated to the aggressive representation of clients in Divorce and Family Law cases. We limit our representation only to Divorce and Family Law cases.

Why should you hire The Law Firm of Martin Osinski, LLC?

We strive to provide exceptional legal representation in a cost effective and expeditious manner. Our philosophy is simple: provide exceptional, compassionate legal representation and outstanding client service. In keeping with this philosophy, every attempt is made to settle the case on terms most favorable to our client without protracted litigation. However, each case is prepared as if it is going to trial to ensure the utmost preparedness and leverage in negotiation.

What sets us apart?

Each client is unique and each case contains a unique set of facts and circumstances. Attorney Martin Osinski prides himself on providing each client with personalized service individually tailored at attaining the highest client satisfaction.

Free No Obligation Consultation

Please do not hesitate to call or email to schedule your free, no obligation consultation.

Our Practice Areas:

  • Dissolution of Marriage/Divorce
  • Dissolution of Civil Union
  • Maintenance/Spousal Support
  • Child Support
  • Child Cusotdy & Visitation
  • Domestic Violence
  • LGBT Family Law Issues
  • Marital Settlement & Separation Agreements
  • Mediation
  • Paternity Cases
  • Premarital & Post Nuptial Agreements
  • Property Division
Great lawyer. Martin is a very nice and respectful lawyer. He answered all my questions and was able to help me out with my situation pretty quick. I would hire him again if ever needed.Also he worked around my schedule and met me where it was convenient for myself. Thanks Martin!!!
This attorney is very innovative, professional and passionate about the law! Attorney Osinski is a great attorney who delivers a wealth of knowledge and expertise to his clients. He handles each case with a great deal of professionalism from the beginning to end.
Angela R
Highly recommend. We were very impressed with Marty's knowledge of the law and most importantly, his patience. He explained the law in layman's terminology since it is not our area of expertise. I would definitely recommend Marty.
Marty is a great lawyer. I would highly recommend his services. He is attentive and knowledgeable. He took time to sit down and really understand our case. He is empathic and understanding of his client's needs and very trustworthy. He takes care of things in a very timely yet efficient manner.

Call for a free, no obligation consultation at


With offices in Downtown Chicago, Park Ridge, and Oak Brook, we are able to represent clients throughout Cook County, DuPage County, Lake County, and Will County.

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