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About me

Cosmo J. Tedone was born on December 13, 1966 in Manchester, Connecticut. Prior to forming the law firm, Tedone & Morton, P.C., he was the senior associate with Chuck Bretz and Associates, P.C. for eight years along with experience as an Assistant Will County Public Defender and private practice in the area of insurance defense and general civil litigation.  Recently he was involved with several appeals that resulted in three (3) murder convictions being overturned in 2011.

His current practice emphasizes in criminal defense (DUI, Suspended Driver Licenses, Drugs, Domestic Battery, Homicide and Appeals), personal injury, and Secretary of State Hearings, representing a wide variety of clientele. He represents clients in litigation matters before Federal and State Courts, arbitration and administrative agencies. Cosmo has over twelve years of experience as a litigator trying over fifty jury trials and hundreds of bench trials and motions.

Mr. Tedone graduated from the Rochester Institute of Technology (B.A. 1990) and Thomas Cooley School of Law (J.D. 1999-Cum Laude). He received several awards and accomplishments while in law school including a Certificate of Merit in Torts and Family Law, finalist in the school's moot court competition and member of law review. 

He is admitted and qualified to practice in the States of Connecticut and Illinois and the United States District Court for the Northern District of Illinois Trial Bar. Mr. Tedone is a member of the Will County Bar Association, Illinois State Bar Association and former member of the Illinois Trial Lawyers.


Languages spoken: Spanish

Practice areas


  1. Criminal Defense: 65%
    16 years
  2. DUI & DWI: 20%
  3. Personal Injury: 15%
    16 years

Attorney endorsements

12 total 

Are you an attorney? Endorse this lawyer

  • Erin Elizabeth Cartwright

    Had the pleasure of knowing Cosmo since law school. Every client I have sent him has been very pleased with his dedication, expertise, and kindness. I highly recommend him!!


    Erin Cartwright Divorce & Separation Attorney
    Relationship: Other

  • Brian J. Conneran-Weig

    I endorse Cosmo 100%. He is a gifted, experienced and dedicated defense lawyer and his results speak for themselves.


    Brian Conneran-Weig Personal Injury Attorney
    Relationship: Fellow lawyer in community

Contact info

Law Offices of Tedone and Morton, P.C.

58 North Chicago St.
Suite 405
Joliet, IL, 60432


ILActive And Authorized To Practice Law199911/12/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Preeminent 5.0 out of 5Martindale-Hubbell2014
Nationally Ranked Superior DUI AttorneyThe National Advocates2014
Top 100 Trial LawyersNational Trial Lawyers2014
Work experience
TitleCompany nameDuration
Managing PartnerTedone & Morton, P.C.2012 - Present
Senior AssociateChuck Bretz & Associates, PC2004 - 2012
Association namePosition nameDuration
Illinois State Bar AssociationMember2012 - Present
Will County Black Bar AssociationMember2011 - Present
Illinois Trial Lawyers AssociationMember2007 - Present
Will County Bar AssociationMember2004 - Present
School nameMajorDegreeGraduated
Thomas M. Cooley Law SchoolLawJD - Juris Doctor1999
Rochester Institute of TechnologyCriminal JusticeBS - Bachelor of Science1990