Leslie Dean O’Neal, Partner

Voted Best of Cobb

2020 Individual Attorney

Contact Leslie:

Support Staff:
Susan Heikkila, Associate

Leslie  Dean O’Neal is a seasoned family law attorney, whose practice focuses on all aspects of family law, including divorce, separate maintenance, child custody and visitation cases, child support modifications, contempt actions, post-divorce modification, child support enforcement, family violence, paternity, legitimation, adoptions, and prenuptial agreements. Leslie takes a solution-based approach to her cases and focuses her clients on the best use of their time and money during the litigation process.  This includes providing clients with a roadmap of what to expect from the outset of a dispute and helping her clients understand all options so they can pursue the path that best suits their unique circumstances. Leslie believes in the value of the mediation process to conserve funds for both sides and avoid the emotional strain that a trial can cause. However, she recognizes that in some cases, a trial is unavoidable and believes that being diligent, assertive, and well prepared is of utmost importance when taking a case to trial.  Leslie has handled countless bench and jury trials, and has enjoyed particular success with her appellate work, successfully appealing State, Superior, and Probate Courts.


Leslie has been named one of Georgia’s Super Lawyers Rising Stars by Atlanta Magazine for six consecutive years and has been named as a Top 20 under 40 Rising Star by Cobb Life Magazine. She is an active member of the Georgia Bar Association, Cobb County Bar Association, Cobb County Bar Association Family Law Division, Cobb County Bar Association Young Lawyers Division, and the Atlanta Bar Association Family Law Division. She is admitted to practice in the Georgia Court of Appeals and the Georgia Supreme Court. Leslie makes it a priority to serve her community in a variety of ways.  She is a regular volunteer with Cobb Legal Aide, a past Chairwoman for Cobb Young Professionals, and a graduate of Leadership Cobb and Honorary Commanders, and a past co-chair of the Red White & Blue Fundraiser for the Share Military Initiative.  Leslie and her husband live in Atlanta with their two children and their rescue dog, Penny Lane.


Leslie attended law school at the University of Mississippi School of Law, where she graduated Cum Laude, and received her undergraduate degree from Auburn University, graduating Magna Cum Laude.


  • Auburn University – B.S. History, 2005 Magna Cum Laude
  • University of Mississippi School of Law, 2008 Cum Laude


  • Court of Appeals of the State of Georgia
  • Supreme Court of Georgia
  • United States District Court for the Northern District of Georgia


  • Phi Beta Kappa (2005)
  • Marietta Kiwanis Outstanding Leadership & Service (2010, 2011, 2012)
  • Cobb Life 20 Rising Stars Under 40 (2014)
  • Super Lawyers Georgia Rising Stars (2013-2019)
  • Leadership Cobb “Spirit” Award (2014)
  • Leadership, Commitment & Service Award, Cobb Young Professionals (2015)
  • Cobb Next Generation Award, Cobb Chamber (2017)

Civic Involvement

  • Cobb County Bar Association New Member Ambassador (2016)
  • Cobb Young Professionals Chairwoman (2015)
  • Cobb Executive Women Member (2015-present)
  • Honorary Commanders (2015)
  • Co-Chair, HCA Red White & Blue Fundraiser for the Share Military Initiative (2016)
  • Leadership Cobb (2013-2014)
  • Leadership Cobb Alumni Association (2014 – present)
  • Georgia High School Mock Trial Judge (2009, 2010, 2015)


  • Cobb County Bar Association
  • Cobb County Family Law Committee
  • Fulton County Bar Association
  • Fulton County Family Law Committee
  • State Bar of Georgia

Reported Appellate Cases

  • In re: Estate of Wertzer, 349 Ga. App. 303 (2019)
  • In re: Estate of Sierra Leigh Wertzer, 330 Ga.App. 294 (2014)
  • Wright v. IC Enters, 330 Ga. App. 303 (2014)
  • Coxwell v. Coxwell, 296 Ga. 311 (2014)
  • Taylor v. Taylor, 293 Ga. 615 (2013)
  • Jeraysi v. Sebastian, 318 Ga.App. 469 (2012)
  • Venable v. Parker, 307 Ga.App. 880 (2011)
  • In re: Fennell, 300 Ga. App. 878 (2009)
  • In re: Hudson, 300 Ga. App. 340 (2009)

Leslie O’Neal

Rated by Super Lawyers

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