With over 40 years of experience in the legal field, Walter Jackowiec has seen firsthand how the right legal guidance can transform a family's future. As the Managing Attorney for Marble in Illinois, Walter brings a deep-seated commitment to helping individuals navigate the emotional and logistical hurdles of divorce, custody, and complex family law matters. He believes that legal care should be accessible, transparent, and—above all—human.
Walter’s career is built on a foundation of empathy. Having served thousands of clients, he specializes in distilling complex legal strategies into clear, actionable paths. Whether he is advocating for a parent in a sensitive custody dispute or guiding a service member through a military divorce, Walter’s approach remains the same: listen first, lead with expertise, and fight for a resolution that allows his clients to move forward with peace of mind.
A graduate of Northern Illinois University College of Law, Walter is a respected mentor in the Illinois legal community. His dedication to service extends beyond the courtroom, including his work with the Public Interest Law Initiative (PILI) and providing pro bono support for military families.
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Practice Areas
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State: Illinois
Acquired: 1982
No misconduct found
John Hancock at 875 N Michigan Avenue, Suite 3100, Chicago, IL, 60611
Showing 1 - 2 of 2 reviews | Case Results
Posted by anonymous | April 22, 2020 | Hired Attorney | Divorce & Separation
Class Act!
Walter Jackowiec is a phenomenal lawyer. When I was introduced to him, he was courteous and supportive. He actively listened to the issues involved in my divorce. He was confident that he could win my case. Walt gave me hope, when I had none. He was extremely focused and knowledgeable. Walt explaine...
Posted by Mike D | June 24, 2013 | Business
Excellent attorney, highly reccommened!
Walt has been my attorney for the last 12 years in my business dealings. HE is the only attorney I use because he gets it done without drama.
"I endorse this lawyer."
"I endorse this lawyer."
"Walt is the definition of "zealous advocacy" and a wonderful trial attorney."
"Walt is an exceptional attorney and any client would be lucky to have him as their advocate!"
"Walt is an extremely competent attorney that is at the top of our profession. Every client should have a lawyer like Walt Jackowiec."
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2026
Peer Review Rated, Martindale-Hubbell
2026
Client Champion Award, Martindale-Hubbell
2025
Peer Review Rated, Martindale-Hubbell
2025
Client Champion Award, Martindale-Hubbell
2024
Peer Review Rated, Martindale-Hubbell
2024
Client Champion Award, Martindale-Hubbell
2023
Peer Review Rated, Martindale-Hubbell
2023
Client Champion Award, Martindale-Hubbell
2022
Peer Review Rated, Martindale-Hubbell
2022
Client Champion Award, Martindale-Hubbell
2021
Peer Review Rated, Martindale-Hubbell
2021
Client Champion Award, Martindale-Hubbell
2020
Client Champion Silver, Martindael-Hubbell
2020
Peer Review Rated, Martindale--Hubbell
2019
Client Champion Award, Martindale-Hubbell
2017
Peer Review Rated, Martindale-Hubbell
1984 - Present
Principal, Walter R. Jackowiec III, P.C.
Member
Member
2010 - 2011
DuPage County Bar FoundationDirector
1978
JD - Juris Doctor
1974
BS - Bachelor of Science
English
