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Michelle O’Neil
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Michelle O’Neil

Area of Practice:


From the Lawyer (Sponsored)

Michelle May O'Neil is a family law specialist that has 25 years’ experience representing small business owners, professionals, and individuals in litigation related to family law matters such as divorce, child custody, and complex property division. Described by one lawyer as "a lethal combination of sweet-and-salty", Ms. O'Neil exudes genuine compassion for her client's difficulties, yet she can be relentless when in pursuit of a client's goals. One judge said of Ms. O'Neil, "She cannot be out-gunned, out-briefed, or out-lawyered!"

Ms. O'Neil became a board certified family law attorney by the Texas Board of Legal Specialization in 1997 and has maintained her certification for 20 years since that time. While representing clients in litigation before the trial court is an important part of her practice, Ms. O'Neil also handles appellate matters in the trial court, courts of appeals and Texas Supreme Court. Lawyers frequently consult with Ms. O'Neil on their litigation cases about specialized legal issues requiring particularized attention both at the trial court and appellate levels. This gives her a unique perspective and depth of perception that benefits both her litigation and appellate clients.

Ms. O’Neil has been named to the list of Texas SuperLawyers for six straight years, 2011-2016, a peer-voted honor given to only about 5% of the lawyers in the state of Texas. In 2014 to 2016, Ms. O'Neil received the special honor of being named by Texas SuperLawyers as one of the Top 50 Women Lawyers in Texas, Top 100 Lawyers in Texas, and Top 100 Lawyers in DFW. She was named one of the Best Lawyers in America for 2016 and 2017 in appellate law and, most recently, made the DMagazine list of the Best Lawyers in Dallas 2016 in appellate law.

A noted author, Ms. O'Neil has written her second book Basics of Texas Divorce Law, which is on its third edition in 2016 and available through  Her first book, All About Texas Law and Kids, was published in September 2009 by Texas Lawyer Press (now out of print). The State Bar of Texas and other providers of continuing education for attorneys frequently enlist Ms. O'Neil to provide instruction to attorneys on topics of her expertise in the family law arena.

Family Law Practice Areas:

Alimony / Spousal Support

Asset & Debt Division

Business Owner Divorce

Child Custody

Common Law Divorce

Grandparents' Rights


Parenting Time


Pre-Marital Agreements

Post-Marital Agreements


Same-Sex Custody

Get O'Neil Wysocki P.C. on your side!

Our Dallas family lawyers at O’Neil Wysocki P.C. have collectively served the Dallas community for more than 65 years. Both Michelle O'Neil and Michael Wysocki are highly respected attorneys and board-certified family law specialists with the Texas Board of Legal Specialization. Our entire firm will work together on your case and support you throughout this difficult time in your life. Contact O’Neil Wysocki P.C. to discuss your case today! 

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  • Board Certified in Family Law, Texas Board of Legal Specialization 1997, recertified 2002, 2007, 2012

Bar Admission

  • State Bar of Texas, 1992
  • United States Supreme Court, 1999


  • Doctor of Jurisprudence, Baylor University School of Law, 1991
  • Bachelor of Business Administration, Baylor University Hankamer School of Business, 1989
  • Mediation Certificate, Texas Women's University, 2003

Honors and Awards

  • Texas Super Lawyers, Family Law, 2011, 2012, 2013, 2014, 2015
  • Top 50 Women Texas Super Lawyers, 2014-2015
  • Top 100 Dallas/Fort Worth Super Lawyers, 2014-2015
  • A-V Peer Review Rating, Lexis-Nexis, Martindale Hubbell Legal Directories
  • Best Lawyer in Park Cities/North Dallas, Living Magazine, 2013
  • Annette Stewart Inn of Court, 2003 to present
  • Superb 10 rating,
  • Who's Who in America, multiple editions
  • Who's Who in American Law, multiple editions


  • State Bar of Texas, Family and Appellate Sections
  • Dallas Bar Association, Family and Appellate Sections
  • Texas Academy of Family Law Specialists


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