The Office of Student Affairs at Yale Law School helps law students navigate their legal education from Orientation to Graduation. We support students individually and collectively, manage law journals, student organizations, and moot court programs.  We promote student life, diversity and inclusion initiatives, wellness activities, community building initiatives, and serve as the primary resource for law students at Yale Law School.  We hope to be the the first place law students stop with questions or concerns.

Ellen M. Cosgrove

Associate Dean
Room RM 88

Dean Cosgrove joined Yale Law School in 2015 as Associate Dean overseeing the Offices of Student Affairs and Career Development, serving as Deputy Title IX Coordinator, and Dean's Designee for discrimination and harassment concerns.

Dean Cosgrove came to Yale with twenty years of experience in higher education as an Associate Dean and Dean of Students, first at the University of Chicago Law School (1995–2004) and then at Harvard Law School (2004–2015). A 1984 graduate of Mount Holyoke College, Dean Cosgrove spent four years in corporate and investment banking in New York before attending law school. She graduated from the University of Chicago Law School in 1991 and practiced law at LeBoeuf, Lamb, Greene and MacRae (an international law firm headquartered in New York City, now defunct) before transitioning into higher education.

Dean Cosgrove is a trustee at the Practising Law Institute, Inc., a nonprofit continuing legal education organization, a Board Member of the National Association for Law Student Affairs Professionals, a member of the Law Student Committee of the ABA's Commission on Lawyers Assistance Programs and a member of the Connecticut Bar Association's Lawyer Well-Being Taskforce. She previously served as a trustee of Mount Holyoke College, a director at Lawyers Concerned for Lawyers, Inc. (Massachusetts’ lawyers’ assistance program), and a member of the Executive Committee of the Association of American Law Schools (Student Services Division). Dean Cosgrove has been singled out by the students at Chicago (2001), Harvard (2006, 2009, and 2011) and Yale (2017) for awards recognizing her contributions to the law school community.

Full Biography

Naomi Erwich

Director of Student Affairs
Room RM 86

Naomi is the Director for Student Affairs and is responsible for the day-to-day operations of the office. Prior to joining Yale Law School, Naomi spent nine years in private practice at a Manhattan-based appellate litigation firm, specializing in representing clients before New York State’s Appellate Divisions and Court of Appeals. She holds a Bachelor of Arts degree in History from Stony Brook University and earned her Juris Doctor at St. John’s University School of Law where she was a member of the Moot Court Honor Society. In her role as Director of Student Affairs, Naomi works primarily with the student organizations and specialized law journals to support co-curricular and extracurricular activities at the law school. She works to promote and foster independent and collaborative programming by, with, and among student organizations. Naomi also works with the Student Representatives to promote Yale Law School's Student Life Initiatives. Students seeking support for conference presentations, research funding, participation in moot court and trial advocacy competitions, and other funding needs should consult with Naomi as well.

Cat Kirchhoff

Assistant Director of Student Affairs
Room RM 90

Cat is the Assistant Director of Student Affairs. As part of this role, she works with committees, working groups, Peer Advocates and Dean's Advisors to help serve as a resource to assist students navigating Yale Law School and University resources. She also helps to coordinate and execute activities including Orientation, Professionalism Programs, Academic Programs, Wellness Programs, and class-specific events. Cat joined the Office of Student Affairs after working for the Center for Public Service and Public Interest Law at Columbia Law School for four years. Prior to that, she served as the National Community Education and Policy Associate at Lambda Legal.

Joseph A. Mensah

Assistant Director of Diversity and Inclusion
Room RM 92

Joseph is the Assistant Director of Student Affairs for Diversity and Inclusion. He is responsible for developing and executing programming designed to improve the quality of student life, supporting professional development, and enhancing the Yale Law School academic mission. In addition, he works with student affinity groups to cultivate the diversity and inclusion of the Yale Law School community. Joseph is an alumnus of Brown University where he majored in Political Science and the University of Pennsylvania Law School where he earned his Juris Doctor. Prior to joining the Student Affairs team, Joseph practiced law at a large international firm, specializing in corporate and regulatory law. Before becoming an attorney, he taught at a Navajo Nation elementary school in northwest New Mexico.


Marie Carrano

Senior Administrative Assistant
Room RM 85

Marie can help with student organization reimbursements. She also schedules appointments with Dean Cosgrove. In addition, Marie is happy to answer questions and, when needed, direct students to the right office for help.



Directions to Our Offices

Exit the main building through the doors next to the L2 library entrance and head into the courtyard. Head left across the courtyard and enter the door immediately next to the bicycle rack (near the green metal sculpture). That's Ruttenberg Hall. Go up one flight of stairs -- that's the Mezzanine Level. Our office is on the right.


Take the staircase immediately to the left as you enter the main building from the 127 Wall Street entrance (where building services is located). Go up the first flight of stairs and enter the door on your left. Follow the hallway up a slight incline and past the clinical professors' offices to an open area with brick floors. Our office is straight ahead.