Carmen Diaz-Duncan

Top rated family law attorney in Florham Park, New Jersey

Newsome O'Donnell, LLC
Carmen Diaz-Duncan
Newsome O'Donnell, LLC

Practice Areas: Family law; view more

Licensed in New Jersey since: 2007

Education: Quinnipiac University School of Law

Languages Spoken: English, Spanish

Selected to Rising Stars: 2012 - 2017

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Newsome O'Donnell, LLC

200 Campus Drive
Suite 205
Florham Park, NJ 07932 Visit website


Carmen Diaz-Duncan is an attorney and partner at Newsome O’Donnell, LLC, in Florham Park, New Jersey. Ms. Diaz-Duncan focuses her practice exclusively on family law, with a particular emphasis on same-sex family law and divorce matters for business owners and professionals. She serves clients in Florham Park, Morristown and throughout all of northern New Jersey.

In addition to divorce, Ms. Diaz-Duncan handles all types of family law disputes, including those involving alimony, child custody, child support, domestic violence, equitable distribution and prenuptial agreements. She is an experienced trial attorney and is trained in collaborative law methods, such as mediation, for clients who want to settle their disputes out of the courtroom.

Ms. Diaz-Duncan has been practicing law for over a decade and has established herself as an accomplished and respected member of the New Jersey legal community. As evidence of her ability, the National Academy of Family Law Attorneys included her on its Top 10 Lawyer Under 40 list. 

Active in several professional organizations, Ms. Diaz-Duncan holds memberships in the Bergen County Bar Association, the Morris County Bar Association and the New Jersey State Bar Association. She is also a member and trustee of the Essex County Bar Association and participates in the Partnership for Women and Justice.

Ms. Diaz-Duncan graduated cum laude from The College of New Jersey with a bachelor’s degree in philosophy as well as in law and justice. She went on to graduate cum laude from Quinnipiac University School of Law. Before joining Newsome O’Donnell, LLC, she was a judicial law clerk for the family court in Hudson County, New Jersey. She holds a license to practice law before all New Jersey state courts.

Practice areas

Family law

Focus areas

Alimony & spousal support, Child support, Custody & visitation, Dissolution, Divorce, Prenuptial agreements, Marital property, Mediation & collaborative law

  • 100% Family law

First Admitted: 2007, New Jersey

Professional Webpage:

  • Selected for inclusion in the Super Lawyers Rising Stars list
  • National Academy of Family Law Attorneys as a Top 10 Lawyer under 40, recognized for her Excellence in the field of Family Law
Pro bono/Community Service:
  • Partnership for Women and Justice, 2008 to Present
Bar/Professional Activity:
  • Morris County Bar Association
  • New Jersey, 2007
  • New Jersey State Bar Association
  • Bergen County Bar Association, 2009 to Present
  • Essex County Bar Association, Trustee 2015-Present
Educational Background:
  • The College of New Jersey, Ewing, New Jersey, B.S., Honors: cum laude, Major: Law and Justice, Major: Philosophy

Office location for Carmen Diaz-Duncan

200 Campus Drive
Suite 205
Florham Park, NJ 07932

Phone: 973-692-6500


6 Years Rising Stars
  • Rising Stars: 2012 - 2017

Attorney resources for Carmen Diaz-Duncan

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