Professor Griffin writes about judicial decisionmaking in both state and federal courts. Her work to date has focused on unwritten norms governing the use of authority in judicial opinions. Professor Griffin was previously on the faculty at the University of Colorado Law School (2012-2022), where she taught first-year and advanced legal writing courses, as well as an academic support course on legal analysis. While at Colorado Law, Professor Griffin received the Outstanding New Faculty Award (2014, 2015), and the Clifford J. Calhoun Public Service Award (2020). Professor Griffin taught first-year legal writing at Notre Dame Law School from 2005-2012, where she taught first-year legal writing and received the Charles F. Crutchfield Professorial Excellence Award (2009) given by the Notre Dame Black Law Student Association.

After graduating from law school, Professor Griffin practiced in the commercial litigation department of Otten, Johnson, Robinson, Neff & Ragonetti, P.C. in Denver.

She is a member of the editorial board of the peer-reviewed journal of the Association of Legal Writing Directors, Legal Communication & Rhetoric.