She teaches in the areas of legal research and writing, judicial writing, and trial advocacy. Her scholarship focuses on judicial writing and judicial decision-making. Mullins started her academic career at the University of Oregon School of Law in the Legal Research and Writing Program. Before entering academia, she practiced complex commercial litigation at Susman Godfrey LLP in Houston, Texas, where she represented plaintiffs and defendants in high-stakes cases. She clerked for Chief Judge Sarah S. Vance in the U.S. District Court for the Eastern District of Louisiana, and Judge Jacques L. Wiener in the U.S. Court of Appeals for the 5th Circuit. She received her J.D., with honors, from the University of Chicago School of Law, and her A.B. from Dartmouth College.