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Muldoon & Muldoon, LLC
111 West Washington Street, Suite 1625 Chicago, IL 60602

John J. Muldoon III

John J. Muldoon III

Managing Partner
Chicago, Illinois

I spent the first 11 years of my career as a county prosecutor in Chicago, IL. I then became general counsel for a securities and commodities trading firm. In addition to those duties I also developed an extensive and diverse commercial litigation practice encompassing all types of business, e.g. real estate development, banking, small business, etc. My brother Michael and I formed Muldoon and Muldoon in November 2001. Since then we have developed our practice to include securities and commodities investment fraud, white collar crime, commercial litigation, personal injury and medical malpractice.

Areas of Practice

  • Securities and Commodities Investment Fraud
  • Commercial Litigation
  • Real Estate and Condominium Litigation
  • White Collar Crime defense
  • Securities and Commodities Firm Formation and Regulation

Litigation Percentage

  • 95% of Practice Devoted to Litigation

Bar Admissions

  • Illinois, 1983
  • New York, 1985
  • U.S. District Court Northern District of Illinois, 1983
  • U.S. Court of Appeals 7th Circuit, 2005
  • Supreme Court of the United States of America, 2000
  • U.S. Court of Appeals District of Columbia Circuit, 2000


  • Illinois Institute of Technology Chicago-Kent College of Law, Chicago, Illinois
    • J.D. - 1983
  • University of Notre Dame, South Bend, Indiana
    • B.A.
    • Honors: Dean's List
    • Major: English


  • I've met Mr. Muldoon six years ago, and he's not failed me as of yet. I have great confidence in him, overall. His resources, knowledge, character, work ethic and also his great quality practice! When everyone in a close to be class action suit, lost because they choose to be represented by another lawyer. But myself I know I came out on top and won a great deal from, the company we took to court for doing me wrong. Mr. Muldoon has stepped in as a lawyer every time I called him, even though he had been busy with other cases. Not once has he turned me down, on or in any legal matter. My family and I strongly recommend Mr. Muldoon for any and all legal problems that may arise in your life or a family member’s. Finally, Mr. John J Muldoon is someone you always want in your corner or on your team! From Alan Tabor, Tabor’s Complete Comfort.

Past Employment Positions

  • Cook County State's Attorney, Asst. State's Attorney, 1983 - 1995
  • Rosenthal Collins Group, General Counsel, 1995 - 2001


  • English (Primary)

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