About Sean Martin McCumber

Admitted to practice law in 1998, Sean M. McCumber graduated magna cum laude with a J.D. from the University of Illinois College of Law in 1998 and graduated magna cum laude in 1995 with a B.A. in Criminal Justice from Illinois State University. Prior to joining the firm, Sean served in the McLean County State's Attorney Office in the juvenile division and then practiced commercial litigation, intellectual property, and advertising law in a large law firm. Sean concentrates his current practice in family law matters. Sean is a member of the DuPage County Bar Association, which named him 2010 Lawyer of the Year. Additionally, Sean presently serves as the Chair of the Family Law & Practice Committee and Chair of the Media Committee. Sean is also an Illinois Super Lawyer, which publication has named him a Rising Star for 2009 and 2010. Sean is also an active member of the American Inns of Court DuPage Chapter, the Celtic Law Society, the Kendall County Bar Association, and the Illinois State Bar Association, where he serves on the Child Law Section Council. Sean has extensive experience as a Guardian ad Litem and Child Representative, as well as a trainer of same, in many judicial circuits in Illinois. Sean has assisted with revisions of local court rules regarding domestic relations, juvenile law, and adoptions. Sean is also an active public speaker and author on various family law topics.

Sean concentrates is practice in divorce litigation, adoptions, guardianships, child custody Litigation, parentage matters, domestic partnerships and unmarried couples, juvenile abuse & neglect matters, juvenile delinquency matters, and representation of children as Guardian ad Litem.

 

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Family Law
Posted by Michael
November 18, 2025
Hired Attorney

Sean McCumber is a waste of time and money, doesn’t care about the facts/truth only out to take your money. He will threaten you every chance he gets terrible attorne. Please do not hire Sean terrible person and a terrible attorney.

Services

Areas of Law

  • Family Law 2
    • Adoptions
    • Divorce
  • Criminal Law 1
    • Juvenile Law
  • Trusts and Estates 1
    • Guardianship and Conservatorship

Experience

  • Bar Admission & Memberships
    Admissions
    1998, Illinois
    2000, U.S. Court of Appeals 7th Circuit
    2001, U.S. Tax Court
    2002, U.S. Supreme Court
    Memberships
    Chicago Bar Association
    Illinois State Bar Association
    Kendall County Bar Association
    DuPage County Bar Association
    DuPage Association of Women Lawyers.
  • Education & Certifications
    Law School
    University of Illinois College of Law
    Class of 1998
    J.D.
    magna cum laude; Dean's List; University of Illinois Moot Court
    Other Education
    Illinois State University, Normal, Illinois
    Class of 1995
    B.A.
    Criminal Justice Sciences, magna cum laude; Alpha Phi Sigma – Criminal Justice Honor Society; Dean’s List; Illinois State University Presidential Scholar; Order of Omega – Interfraternity Honor Society; Sigma Phi Epsilon Fraternity

Contact Sean Martin McCumber

Partner at Blacha Law Office, Ltd.
4.7
22 reviews

1230 E Diehl Road, Suite 325Naperville, IL 60563U.S.A.

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116 N. Chicago Street, Suite 303Joliet, IL 60432U.S.A.

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33 N. Dearborn, Suite 1000Chicago, IL 60602U.S.A.

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Other Office Locations

Joliet, IL

116 N. Chicago Street, Suite 303Joliet, IL 60432U.S.A.

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Chicago, IL

33 N. Dearborn, Suite 1000Chicago, IL 60602U.S.A.

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Attorneys FAQs

  • Is this attorney admitted to practice in any U.S. Federal Courts?
    Sean Martin McCumber is admitted to practice before the United States Court of Appeals for the Seventh Circuit, United States Supreme Court and United States Tax Court.
  • Does this attorney speak any other languages?
    Sean Martin McCumber speaks French and Spanish.
  • Does this attorney accept major credit cards?
    Yes, Sean Martin McCumber will accept Visa, MasterCard, Discover and American Express.
  • Does this attorney maintain a practice in more than one location?
    Yes, Sean Martin McCumber has a presence in Chicago, IL and Joliet, IL.
  • What law school did this attorney attend?
    Sean Martin McCumber attended University of Illinois College of Law.