Daniel studied classical piano and German language and literature at New York University before returning to his home state for law school at the University of Georgia. During law school, Daniel received the Spurgeon Public Interest Fellowship, was a member of the Georgia Law Review and the Order of the Coif, and interned in Arusha, Tanzania at the U.N. International Criminal Tribunal for Rwanda. Before joining the ACLU, Daniel clerked in Atlanta at the U.S. District Court for the Northern District of Georgia and in Washington, D.C. at the U.S. Court of Appeals for the Armed Forces. While in D.C., he served on the D.C. Lawyer Chapter board of the American Constitution Society. Daniel is admitted to practice law in Florida, New York, and D.C.