Clark & Steiner, Ltd.
Attorneys At Law

(847) 604-8300

Mary Clark is an attorney who has shattered glass ceilings. She has over 35 years of experience as a lawyer, and her commanding presence, knowledge, and success has established Ms. Clark as one of the most well-respected family law attorneys in Lake County. Ms. Clark graduated from Northern University College of Law in 1979. She worked as an associate and partner for the law firm of Sullivan, Smith, Hauser & Noonen, Ltd., for over ten years where she practiced in various areas including real estate, corporate law, and criminal defense. From 1996 through 2011, Ms. Clark was an equity partner at one of the largest family law firms in the country. She was the managing partner for the satellite office in Lake County, Illinois. In January, 2012, Ms. Clark and her partner, Valerie Steiner, opened Clark & Steiner, Ltd.

Ms. Clark is a former president of the Lake County Bar Association, Association of Women Lawyers, and Jefferson Inns, American Inns of Court. Ms. Clark has been selected by her peers as an Illinois Super Lawyer each year from 2006 through 2014. In November, 2010, Ms. Clark was selected as one of Illinois’ Leading Women Lawyers and she was featured in an article in Leading Lawyers Magazine.

Bar Admissions and Membership

  • State of Illinois, 1979
  • Lake County Bar Association, Member


  • JD, Northern Illinois University College of Law, 1979
  • BA, Barat College, 1976

Accolades and Presentations

  • Super Lawyer, Illinois Super Lawyers, 2006 – 2014
  • Illinois Leading Women’s Lawyer, 2010
  • Illinois Family Law Update, Lake County Bar Association Family Law Conference, past ten plus years (author and presenter)

We're On Your Side

Please contact Clark & Steiner, Ltd., for an initial consultation.
Experienced representation is just a phone call away.

Mary J. Clark, Partner