Siobhan Leger is a graduate of both Louisiana State University, where she earned her Bachelor of Arts in English, and the Paul M. Hebert Law Center at Louisiana State University, where she earned her Juris Doctor and herGraduate Diploma in Comparative Law. Siobhan graduated with honors for pro bono service and was admitted to practice in the State of Louisiana shortly thereafter.

After practicing in the areas of estate planning, estate administration, probate, and real estate law for several years with a boutique law firm in the Baton Rouge area, Siobhan Leger opened the Leger Law Group, LLC. As the managing attorney for the Leger Law Group, LLC, Siobhan now practices in all areas of civil law, but continues to focus her practice on wills & trusts, estates, real estate, medicaid qualification, and family law.

Siobhan serves her community as an active volunteer attorney with Wills for Heroes: an organization that provides no-cost estate planning legal services to veterans, members of law enforcement, and their families. Since 2011, she has served Baton Rouge residents in need of legal services as a volunteer attorney with Baton Rouge Bar Association's Pro Bono Panel and Thirst for Justice Initiative. She also serves on the board of the Women's Council of Greater Baton Rouge.
In 2015, Siobhan was nominated to serve as a member of the Practice Assistance & Improvement Committee of the Louisiana State Bar Association.