Jeffrey P. O'Kelley

Jeffrey P. O'Kelley

Lake Forest, Illinois

Jeffrey P. O'Kelley is an attorney specializing in estates and trusts litigation for both plaintiffs and defendants, including but not limited to will and trust contests, complex fiduciary litigation, will and trust construction cases and contested guardianship proceedings. In addition, Mr. O'Kelley has extensive appellate litigation experience, including the published decisions of In re Estate of Walsh (2012 IL App (2d) 110938) and In re Estate of LaPlume (2014 IL App (2d) 130945).  Mr. O'Kelley also practices in the fields of estate planning and commercial litigation, as well as estate and trust administration.  He has written for both the Illinois Bar Journal and the Illinois State Bar Association Trusts & Estates Newsletter, and he is an active member of both the Illinois State Bar Association and the Lake County Bar Association. Mr. O'Kelley graduated with honors from the Chicago-Kent College of Law, and he has been licensed to practice law in the State of Illinois since 2009.

Areas of Practice

  • 70% Estates and Trusts Litigation
  • 20% Estate Planning and Administration
  • 10% Commercial Litigation

Litigation Percentage

  • 70% of Practice Devoted to Litigation

Bar Admissions

  • Illinois, 2009
  • U.S. District Court Northern District of Illinois, 2010


  • Chicago-Kent College of Law, Illinois Institute of Technology, Chicago, Illinois
    • J.D. - 2009
    • Honors: With Honors, Recipient of Multiple CALI Awards
  • University of Illinois, Urbana-Champaign, Illinois
    • B.A. - 2004
    • Major: English and Rhetoric

Published Works

  • The Evolving Law Surrounding Quantum Meruit Claims (co-author), ISBA Trusts and Estates Newsletter, Vol. 59, No. 6, 2013
  • Probate and ‘Underwater’ Real Estate: The Promise of LaPlume (co-author) , Illinois Bar Journal, June, 2015


  • June 2015: Ethical Considerations in the Trust and Estate Context Waukegan, IL, LCBA

Professional Associations and Memberships

  • Illinois State Bar Association, Member, 2010 - Present
  • Lake County Bar Association, Member, 2011 - Present

Past Employment Positions

  • Best, Vanderlaan & Harrington, Associate Attorney, 2010 - 2011


  • English