Jeffrey Marx

Jeffrey Marx is a Chicago criminal defense lawyer at Robert J. Callahan & Associates, who represents clients facing major felonies, misdemeanors, and other criminal accusations. He reviews the circumstances behind each charge, explains available options, and develops strategies based on the evidence. His approach emphasizes honesty, empathy, and open communication throughout the case. He helps clients understand procedures, possible consequences, and important decisions while protecting their rights during investigations, negotiations, hearings, and courtroom proceedings in Illinois.

Jeffrey earned his J.D., cum laude, from Northern Illinois University College of Law and his B.A. from DePaul University. During law school, he served on the NIU Law Review Board of Editors and participated in the Christian Legal Society. His academic work strengthened his research, writing, and legal analysis. He carefully applies those skills when examining criminal statutes, court decisions, police reports, witness accounts, and procedural issues affecting each defense.

Jeffrey gained courtroom experience as a 711 intern with the Cook County State’s Attorney’s Office. He also served as a judicial clerk for a presiding Cook County judge. His early roles exposed him to charging decisions, courtroom procedure, evidentiary disputes, and judicial reasoning. He uses that perspective to anticipate prosecution arguments, identify weaknesses, prepare motions, and present clear positions for clients accused of offenses ranging from misdemeanors to serious felonies.

Jeffrey Marx provides defense counsel shaped by careful preparation and personal attention. He listens closely to each client, addresses concerns directly, and explains developments in understandable terms. His practice focuses on building trust while maintaining a realistic view of the evidence and possible outcomes. He prepares for negotiation or trial according to the needs of the case, helping clients move through difficult criminal proceedings with informed guidance and committed representation.

Law Office Affiliations

• Associate Attorney, Robert J Callahan | Chicago Defense Lawyer
• Member, Illinois State Bar Association
• Member, Christian Legal Society
• Member, NIU Law Review Board of Editors

Licensed State

• Illinois

Education

• Northern Illinois University College of Law
  Juris Doctor (JD)
• DePaul University
  Bachelor of Arts

Awards & Badges