Creston earned his law degree, magna cum laude, from the University of South Carolina School of Law, where he graduated in the top 3% of his class. In law school, Creston proudly served as Editor-in-Chief of the South Carolina Law Review and was a member of the Order of the Coif, Order of the Wig and Robe, and the John Belton O’Neall Inn of Court. He also served as an elected member of the Honor Council for all three years of law school. Creston was the recipient of the Richard J. Foster Scholarship (awarded to the first-year student with the highest grade point average in his or her first semester in law school), Coleman Karesh Scholarship (awarded to the second-year student with the highest cumulative grade point average at the time of the award), and the Claude N. Sapp Award and Scholarship (presented to the third-year student who is chosen by his or her classmates as possessing the best combination of scholarship, leadership, and industry).