Mary A. Zambreno

Mary A. Zambreno
Tel/Direct 1:
Tel/Main 1:
801 Grand Ave.
Suite 3700
Des Moines, IA 50309
Support Team
515.244.2600 x563


Mary Zambreno has extensive trial experience as a member of the firm’s Litigation Group and experience in regulatory compliance as a member of the firm’s Banking Group.

Mary focuses her practice on serving clients who are either going through the emotional process of divorce or dealing with modifications to decrees after their marriages have already been dissolved. She is an experienced advocate for her clients, determined to reach the outcome that will best position them for a financially stable future. Mary handles complex custody and visitation issues, property division, and alimony and child support questions. Recognizing that some divorce matters are able to be handled more amicably than others, and that each case presents individual and unique issues, Mary is trained in collaborative divorce agreements. Mary also drafts prenuptial agreements and represents families in adoption proceedings.

In addition to her family law experience, Mary handles regulatory and compliance issues for the firm’s banking clients, as well as complex banking and business-related litigation, having represented the firm’s clients in financial issues related to mortgages, third-party vendor agreements, and the like.

Education & Background


  • J.D., DePaul University College of Law, 2004 (Moot Court Society; National Juvenile Law Moot Court Competition; Domenick L. Gabrielli National Family Law Moot Court Competition; Dean's Minority Merit Scholar)
  • B.A., Northwestern University (With Honors)

​Prior Experience

  • Attorney and Law Clerk at Schiller, DuCanto and Fleck (the country’s largest matrimonial law firm), Chicago, Illinois, 2002-2006

Honors & Awards


  • Selected as one of the Des Moines Business Record’s Forty Under 40 honorees for 2010.
  • Recognized as an Outstanding Volunteer by the Polk County Volunteer Lawyers Project in 2008 and 2009.

Best Lawyers

  • Selected for inclusion in the 2017-2023 editions of The Best Lawyers in America in the following area:
    • Family Law


Admitted to practice in the following states:

  • Iowa
  • Illinois

Admitted to practice before the following federal courts:

  • U.S. District Court for the Southern District of Iowa
  • U.S. District Court for the Northern District of Iowa
  • U.S. District Court for the Central District of Illinois
  • U.S. District Court for the Northern District of Illinois

Memberships & Activities

  • Iowa State Bar Association
    • Board of Governors, 2018-2020
    • Member, Family Law Committee; Communications Committee; Member Services Committee
    • Member, Young Lawyers Division Executive Council, 2007-2010
    • Member, Young Lawyers Division By-law Revision Task Force, 2008
    • Member, Young Lawyers Division Attorney Disciplinary Decisions Task Force, 2007-2012
  • Illinois State Bar Association
    • Member, Family Law Section
    • Member, Young Lawyers Section Council, 2005
  • American Bar Association
    • Member, Family Law Section
  • Polk County Bar Association
    • Board of Directors, 2014-2020
    • Board of Directors, Volunteer Lawyers Project, 2010-2014
    • Member, Membership Committee
    • Member, Bench Bar Committee
    • Recognized as an Outstanding Volunteer in 2008 and 2009
  • Polk County Women Attorneys
  • Chicago Bar Association
    • Member, 2004-2007
  • Lake County Bar Association
    • Member, 2004-2006
  • Iowa Homeless Youth Center
    • Member, Community Advisory Board, 2006-2010
  • Youth and Shelter Services, Inc.
    • Member, Corporate Board, 2007-2010

Articles, Presentations, and Publications