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William Serpico

[email protected]
312-207-0000 ext. 230

Mr. Serpico  is an of-counsel attorney at Serpico, Petrosino, DiPiero & O'Shea Ltd. and one of the firm's original founding partners. He represents persons who are involved in multi-dimensional family relationship issues and controversies,  included amongst which are dissolution of marriage/legal separation, child custody, child support, maintenance and related matters. His primary focus is directed toward assisting clients  in negotiating equitable resolutions to their disputes whenever practical and in his client's best interests. With over forty-five years of experience as a trial lawyer, Mr. Serpico is  recognized as a skilled and capable litigator in family law practice and will likewise litigate matters when necessary and when economically practical and beneficial to his client. Mr.  Serpico has also successfully argued cases on behalf of his clients in both the state and federal court of appeals. Mr. Serpico is committed to providing personalized service and  attention to his clients and achieving the best possible results on their behalf.


  • University of Wisconsin, B.S. (1963) ​
  • DePaul University  ​
    • College of Law, J.D. (1966) ​
  • John Marshall Law School (1967-1968) ​
    • (Graduate School)


  • State of Illinois (1966) ​
  • U.S. District Court,  ​
    • Northern District of IL (1966) ​
  • U.S. Supreme Court (1967)


  • Illinois State Bar Association ​
  • Chicago Bar Association ​
  • Justinian Society of Lawyers


  • If You Want to Win... Choose Them

    "I used Bill Serpico back in 1988. Since then family members have also used him for custody cases...He Always Wins...It's Sept. 9th, and I am getting ready to call him to represent me and my son...I am fighting for Grandparent rights and my son for joint custody...If you want to WIN...He is your ...
  • Attorney Review

    "Bill Serpico was extremely knowledgeable in his area of divorce law and has years of experience. He kept me informed throughout the divorce. He was on time to court and very trustworthy. As far as I know he did not discuss my case with anyone else."
  • Simply the Best Divorce Attorney

    "I used Mr. William Serpico for my Divorce, he is the most trustworthy, knowledgeable, and respected attorney. If you don't have the right attorney for your divorce, it can impact the rest of your life and your children's lives. You will win if you use Mr. Serpico!!"
  • The Best Attorney and Law Firm

    "My family and I have used William Serpico and his Associates Since the early 70's. He is by far the best Lawyer there is. He is Brilliant and conducts himself just the way you expect A Professional to do. He makes you feel confident and Welcome. I would recommend him and his firm to everyone. I ...

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