VIVANCO LAW LLC
VIVANCO LAW LLC
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What We Do

Vivanco Law LLC, a Chicago family law firm, specializes in resolving complex family law matters including divorce and dissolution, allocation of parental responsibilities (child custody), parenting time, support, post-decree enforcement and modification, and prenuptial and postnuptial agreements.  We represent clients in collaborative divorce (an out of court, team based approach), mediation, and litigation where needed.


Kathryn McMahon Vivanco

Kathryn McMahon Vivanco is the founder of Vivanco Law. Kate has worked exclusively in family law since the start of her legal career. Kate is passionate about helping her clients successfully navigate the divorce and separation process through cooperative processes such as collaborative law, mediation, and settlement as well as through litigation when needed. 


Prior to founding Vivanco Law, Kate was a partner at a prominent family law firm in Chicago and she later co-founded a family law firm where she gained extensive experience in resolving complex family law matters for over a decade. Kate understands that every family’s situation is unique, and she works with each client to determine a strategic approach based on the client’s goals and interests. Kate handles every engagement with empathy, compassion, and focused attention to detail.


In law school, Kate received a certificate in tax law where she focused her studies on family law, taxation, and trust and estate planning. In addition, she gained litigation experience in Illinois state court as a judicial extern for the Honorable Donald J. O’Brien, Jr. (retired), Circuit Court of Cook County, Law Division, and in federal immigration court as a legal intern at the United States Department of Homeland Security, Immigration and Customs Enforcement, Office of the Chief Counsel.

More About Kathryn

Education

Selected Legal Presentations

Honors & Awards

  • Loyola University Chicago School of Law, J.D., Certificate in Tax Law, cum laude, 2012
  • University of Wisconsin, B.A. with distinction, 2007 (Political Science, International Studies, and French)
  • L’Université Paul Cézanne: L’Institut d’Etudes Politiques in Aix-en-Provence, France, Political Science Diploma, 2007

Honors & Awards

Selected Legal Presentations

Honors & Awards

  • Super Lawyers, Illinois Rising Star, 2014-2025 (the designation is limited to less than 2.5% of lawyers who are fewer than 40 years of age or who have been practicing for 10 years or less in the State of Illinois)
  • Leadings Lawyers, Emerging Lawyer, 2017-2025
  • Best Lawyers, Family Law and Family Law Mediation, 2020
  • American Institute of Family Law Attorneys, 10 Best Attorneys – Illinois, 2017

Selected Legal Presentations

Selected Legal Presentations

Selected Legal Presentations

  • Divorce Math Workshop, Lilac Tree, February 2018, February 2020
  • Discovery and Understanding Marital Assets Workshop, Lilac Tree, May 2019
  • Tax Law Panel, Loyola University Chicago School of Law, Business Law Society, March 2017

Selected Legal Training

Selected Legal Training

Selected Legal Presentations

  • Collaborative Law Institute of Illinois, Collaborative Law Basic Training, 2019
  • Center for Conflict Resolution:  40-hour Mediation Skills Training Certificate, 2019
  • National Institute of Trial Advocacy and American Bar Association: Family Law Trial Advocacy Program, 2016

Professional Membership

Selected Legal Training

Professional Membership

  • Fellow, Collaborative Divorce Illinois
  • American Bar Association
  • Illinois State Bar Association
  • Chicago Bar Association

Community Involvement

Selected Legal Training

Professional Membership

  • Lilac Tree Board of Directors
  • Lookingglass Theatre Associates Board, 2013-2020

Bar Admissions

Bar Admissions

Bar Admissions

Illinois 2012

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