

BOUTIQUE FAMILY LAW FIRM
Specializing in Domestic Litigation & Compassionate Advocacy
PRACTICE AREAS
DIVORCE
We guide clients through every stage of the divorce process with clarity and compassion, advocating for fair outcomes and a fresh start.
CHILD CUSTODY
Our firm works to protect your parent-child relationship while pursuing custody arrangements that serve the best interests of your children.
RESTRAINING ORDERS
We represent individuals seeking protection from abuse or harassment, helping secure restraining orders that provide safety and peace of mind. We also represents individuals who are defending restraining orders.
ALIMONY
We help clients understand and navigate alimony—whether seeking support or facing a claim—based on financial need and legal fairness.
CHILD SUPPORT
We assist in establishing, modifying, and enforcing child support orders to ensure your child’s needs are met with consistency and care.
LEGITIMATION & PATERNITY
We handle legitimation and paternity cases to help establish legal parentage, custody, and support rights for unmarried parents.
GRANDPARENT CUSTODY & VISITATION
We advocate for grandparents seeking custody or visitation, recognizing the important role they play in a child’s life.
PRENUPTIAL & POSTNUPTIAL AGREEMENTS
We draft and review prenuptial and postnuptial agreements that protect your interests and provide peace of mind before marriage or during marriage.
LESLIE O'NEAL
PARTNER
Tel: 770-202-4770
leslie@ohfamilylawfirm.com
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 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 been named one of Georgia’s Super Lawyers Rising Stars by Atlanta Magazine for eight consecutive years. She has been named as a Top 20 under 40 Rising Star by Cobb Life Magazine and is a past recipient of the Cobb Chamber’s Next Generation Award. She is an active member of the Georgia Bar Association, Cobb County Bar Association, and the Atlanta Bar Association Family Law Division, and served as the President of the Cobb Bar Family Law Section in 2021-22. Leslie makes it a priority to serve her community in a variety of ways. She is a regular volunteer with Cobb Legal Aide, a co-chair of the Center for Family Resources charity gala, past Chairwoman for Cobb Young Professionals, a graduate of the Leadership Cobb and Honorary Commanders programs, and a past co-chair of the Red White & Blue Fundraiser for the Share Military Initiative.
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.
SUSAN HEIKKILA
PARTNER
Tel: 770-202-4770
Susan Heikkila is a dedicated family law attorney with over five years of experience representing individuals in divorce and other complex family law matters. Susan's practice is rooted in guiding clients through emotionally difficult transitions with clarity, compassion, and strong legal advocacy. Whether it's navigating custody disputes, property division, or domestic violence issues, Susan brings a holistic approach to every case, always focused on achieving the best possible outcome for clients.
In 2022, Susan was honored to be named a Pro Bono Star by the Atlanta Legal Aid Society for her work representing low-income survivors of domestic violence, helping them obtain critical restraining orders and protection. Susan is a member of the Charles Longstreet Weltner Family Law America Inn of Court, where family law practitioners lead the movement to elevate the practice of law by promoting the ideals of excellence and professionalism. Susan also currently serves as the Vice President of the Cobb Bar Association Family Law Section.
Susan was raised in Forsyth County and is a 2016 Magna Cum Laude graduate from Georgia College in Milledgeville, Georgia. Susan attended Georgia State University College of Law in Atlanta, Georgia, where she was a member of the Business & Law Society and became involved in government affairs at the State Capitol. Susan is an avid equestrian, competing around the region in her spare time.

TESTIMONIALS
WHAT PEOPLE SAY

HIGHLY, HIGHLY RECOMMEND
Leslie O’Neal demonstrated unparalleled expertise, professionalism, and dedication. She navigated my divorce with precision, keeping me informed at every step. I I truly felt like I was in amazing hands through a scary time.

BEST IN CLASS SERVICE
Susan helped develop a strategic game plan that was tailored to my budget and expectations. She held opposing counsel accountable and helped keep the ball moving down field. Highly recommend for family law. Susan is direct, professional, and strategic. She hit all of my milestones and expectations in our case.

TOP NOTCH.... SERIOUSLY
Leslie is an attorney that makes you go WOW the whole time she is speaking either to you, the judge, or grilling the opposing party. You have to see it to believe it. She incredible and won me a LOT of attorneys fees too!

CONTACT O'NEAL HEIKKILA
OUR OFFICE
Email: info@onealheikkila.com
Tel: 770-202-4770