O'Neill Dennis R

About the Attorney

O’Neill Dennis R is a highly reputable attorney based in Chicago, Illinois, with a proven track record of success in various legal matters. With years of experience in the field, O’Neill Dennis R is dedicated to providing top-notch legal representation and guidance to his clients. Specializing in a wide range of practice areas, including personal injury, criminal defense, and family law, he is known for his unwavering commitment to achieving the best possible outcomes for those he represents. Whether you are facing a complex legal issue or seeking legal advice, O’Neill Dennis R has the knowledge and expertise to help you navigate the legal system with confidence. Trust in O’Neill Dennis R to be your advocate and fight for your rights.

Client Reviews

Owen Fayer

3/23/2025

I highly recommend my attorney, Dennis O’Neill, as he has consistently demonstrated professionalism and a deep knowledge of the law while effectively representing my family’s interests.

Joan O.

6/27/2019

Dennis is a great lawyer! He has helped so many of our friends and family with different matters. Very thorough and so helpful.
Tom and Joan

liz GARCIA

5/05/2018

Kthln A.

2/28/2017

Not only is Mr. O'Neill reliable, ethical and unassuming, he doesn't overcharge people, offers clear, concise advice and I feel, has my back. If you have an issue about trusts and estates, which is his field of practice, contact him! He is terrific

Sonda J.

8/28/2016

I called several lawyers Mr. O'Neill being one of them. Mr. O'Neill got back with me just as he promised and provided me with information to take to court to defend myself in court. He took time and researched my situation free of charge. As a result I will hire him to handle my case in court. He also have reasonable rates. I would highly recommend him. The information he gave me and time he took to research my problem was not free and no other lawyer would have done it for free .