PHONE: 708-460-8888

FAX: 708-460-8887

Integrity, Honesty, Strength

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David J. O’Connor

The firm’s founder is David J. O’Connor, an award winning trial attorney who has built a reputation of integrity and skill in the courtroom. For the better part of 20 years, Dave was a prosecutor and supervisor in the Cook County State’s Attorney’s Office. As a trial attorney, gang prosecutor, and felony supervisor, Dave has tried some of the most high profile and complex cases that have occurred in the history of Cook County. He not only has developed a reputation of excellence as a trial attorney, but he is also a published author and a well-respected instructor of law. He has provided over 100 lectures in over 20 states on topics ranging from trial advocacy, ethics, gang crimes, violent crime and drugs. He has held undergraduate and  graduate

Having received his law degree in 1977, Craig began working at Arthur Andersen. During his rise to Senior Partner and later as Tax Director at Deloitte, Craig provided complex legal and tax advice to dozens of large corporate and Fortune 500 companies. After 35 years, Craig retired from the accounting world in 2012 but had no plans to retire from hard work. As of counsel to O’Connor Law Offices, he continues to provide sound legal, corporate, and tax related advice to many clients in need of his renowned skill and expertise. He oversees all personal and corporate tax related issues and all IRS and tax related litigation.

 

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Mona L. O'Connor

J. Craig Gies

Mona O'Connor David J. O'Connor J. Craig Gies.

faculty positions and has won accolades as a nationally renowned lecturer, where he has trained thousands of law students, defense attorneys, police officers, prosecutors, and judges. Dave practices in all fields of litigation: criminal defense, civil, and administrative. Dave is also of counsel to the noted and prestigious Chicago personal injury law firm, the Cavanagh Law Group, who has successfully obtained over $400,000,000 in settlements and verdicts.

Mona O’Connor joined the firm in 2008 and is currently a partner with O’Connor Law Offices. She is a J.D., C.P.A. and her primary areas of practice include estate planning, real estate and business/corporate law. Prior to joining the firm, Mona earned her law degree from DePaul University and thereafter held the positions of Director at Deutsche Bank in the Private Wealth Management area, Vice President at LaSalle Bank, and Manager at a “Big Four” accounting firm in both the audit and tax groups working on a variety of financial services clients. Since joining O’Connor Law Offices, Mona has received rave reviews and testimonials from her many clients for her extraordinary knowledge, skill, and patience. She is a frequent lecturer on real estate and estate planning issues.

Work with an office with decades of experience. Have confidence that we'll stand by your side.

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