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 Chicago 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.

Sean Martin McCumber practices in Family Law.


  • Paternity
  • Family Law (divorce, custody, alimony)
  • Adoptions
  • Illinois, 1998
  • U.S. Court of Appeals 7th Circuit, 2000
  • U.S. Supreme Court, 2002
  • U.S. Tax Court, 2001
  • University of Illinois College of Law, Urbana, Illinois, 1998
    • J.D.
    • Honors: Magna Cum Laude
    • Honors: Dean’s List; Moot Court
  • Illinois State University, Normal, Illinois, 1995
    • B.A.
    • Honors: Magna Cum Laude
    • Honors: Illinois State University Presidential Scholar; Dean’s List
  • Leading Lawyers, 2016
  • Super Lawyers, 2014 – 2016
  • Super Lawyers, Rising Star, 2009 – 2013

“At the Finish Line: Drafting Sponsorship Agreements That Won’t Trip You Up” (co-author), DCBA Brief, Volume 20, Issue 5, 2008

  • United States v. Thomas, 284 F.3e 746 (7th Cir 2002)
  • Past Employment Positions:
  • Winston & Strawn LLP, Staff Attorney, 1998 – 2005
  • McLean County State’s Attorney’s Office, Rull 711 Intern, 1997 – 1998

Lawyers for the Creative Arts, 2000 – Present

  • French
  • Spanish

Sigma Phi Epsilon