Sean P. Sullivan

Sean P. Sullivan is a family law attorney at SBK Law Group who represents clients in contested divorce, uncontested divorce, maintenance, child support, post-decree matters, parenting agreements, and prenuptial agreements. He also assists clients with inheritance litigation, including will contests and fiduciary disputes, and continues to advise business clients on litigation, contracts, and corporate matters. Sean brings a practical, direct, and client-focused approach to each case, helping people understand their legal options and make informed choices during stressful disputes and court proceedings.

Sean earned his J.D. from Western Michigan University, Cooley Law School, where he also completed a certificate in litigation. He also received a B.A. in Psychology and Political Science from the University of Iowa. His legal education and psychology background support his work in negotiation, courtroom advocacy, and case strategy. His training helps him assess facts, explain risks, and prepare clients for possible outcomes in family law, probate, mediation, and business-related disputes with care, patience, and clear communication throughout each case.

Sean helps clients by combining strong trial skills with a steady focus on practical resolution. In contested family law cases, he guides clients through difficult issues involving finances, parenting, support, and property. His background in business formation, valuation, and litigation helps clients whose divorce or probate matter involves a company, executive compensation, or complex financial questions. He also works as a mediator, helping families seek private, timely, and reasonable agreements when settlement is possible outside court through structured productive talks.

Sean P. Sullivan has served the legal community through bar association leadership, child law work, guardian ad litem appointments, and court-appointed mediation. He is vice chair of the DuPage County Bar Association Family Law section and has contributed to professional responsibility and child law efforts. Recognized as a Super Lawyers honoree in family law, Sean is known for fair advice, strong advocacy, and careful attention to the serious impact legal disputes have on clients and their futures.

Law Office Affiliations

• Partner, SBK Law Group
• Vice Chair, DuPage County Bar Association, Family Law Section
• Member, Illinois State Bar Association

Licensed State

• Illinois

Education

• Western Michigan University, Cooley Law School
  Juris Doctor (JD)
• University of Iowa
  BA in Psychology & Political Science

Awards & Badges