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About me

Mr. Warren is a principal with the firm and has concentrated his practice in the area of matrimonial law since 1989. A significant part of his practice involves analysis of complex financial issues, business and real estate valuation, and cash flow analysis in connection with matrimonial matters. He has been selected and named in the "Best Lawyers in America" 2013 19th Edition; has received an AV pre-eminent rating from Martindale Hubbell; is a graduate of the American Bar Association Family Law Section Trial Advocacy Family Law Institute; and was named one of the “Top 40 Under 40 Illinois Attorneys” in 2004 by the Illinois Law Bulletin. He has been named from 2003 to present as being in the top 5% of attorneys in the field of domestic relations in the State of Illinois by the Leading Lawyers Network and was recognized as a “Super Lawyer” by the Law and Politics Magazine from 2005 to present. He has also been an Adjunct Professor at DePaul University College of Law in 2010 teaching “How to Run a Family Law Practice.” He has lectured frequently in the field of domestic relations and has authored numerous articles regarding developing case law and issues concerning child support and maintenance.

Mr. Warren is licensed to practice law in the State of Illinois and the United States District Court, Northern District of Illinois.


Practice areas


  1. Divorce: 40%
    27 years
  2. Child Custody: 20%
    27 years
  3. Child Support: 20%
    27 years
  4. Alimony: 20%
    27 years

Attorney endorsements

2 total 

Are you an attorney? Endorse this lawyer

  • Gregory H. Moss

    Mr. Warren is a very successful attorney in the family law field. He has obtained great results for his clients throughtout the years. Mr. Warren is of the highest integrity and is someone I personally hold in the highest regard after knowing him for many years. I would recommend Mr. Warren to anyone seeking counsel for family law matters.


    Gregory Moss Lemon Law Attorney
    Relationship: Fellow lawyer in community

  • Michael Alan Haber

    I endorse this lawyer.


    Michael Haber Family Attorney
    Relationship: Fellow lawyer in community

Contact info

Katz, Goldstein & Warren FAMILY LAW ATTORNEYS

2345 Waukegan Road Suite S-150
Bannockburn, IL, 60015


ILActive And Authorized To Practice Law198911/12/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2014
Best Lawyers, Family LawBest Lawyers in America2013
Super LawyerSuper Lawyers Magazine2005
Top 40 Under 40 AwardIllinois Law Bulletin2004
Leading LawyerLeading Lawyers Network2003
Work experience
TitleCompany nameDuration
Managing PartnerKatz Goldstein & Warren1998 - Present
Adjunct ProfessorDePaul University College of Law2010 - 2010
AttorneySchiller Du Canto & Fleck1989 - 1998
Association namePosition nameDuration
Prairie State Legal ServicesVolunteer Lawyer Program1998 - Present
Lake County Bar Association - ArbitrationArbitrator1998 - Present
Lake County Bar Association, Family Law CommitteeN/A1991 - Present
Lake County Bar AssociationMember1989 - Present
Chicago Bar AssociationMember1989 - Present
Illinois State Bar AssociationMember1989 - Present
American Bar AssociationFamily Law Section Trial Advocacy Institute1989 - Present
Publication nameTitleDate
The Docket - A Publication of the Lake County Bar AssociationWhat Happens When the W-2 Does Not Fit?2000
School nameMajorDegreeGraduated
DePaul University College of LawLawJD - Juris Doctor1989
Indiana UniversityBusinessBS - Bachelor of Science1986
Glenbrook North High SchoolN/AHigh School1982
Speaking engagements
Conference nameTitleDate
Lake County Bar Association Child Rep. Training SeminarInterviewing/Deposing the Expert Witness2012
Lake County Family Law SeminarTrial Objections2011
Lake County Family Law SeminarMaintenance and Child Support Formulas2009
Northern Trust BankChild Custody FAQ's2004
Illinois Institute for Continuing Legal EducationDrafting Tips for Marital Settlement Agreements2004
Lake County Family Law SeminarWhat Happens When the W-2 Does Not Fit?2000