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, a member of the New York Bar, 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., 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.


Dean Cosgrove and her husband live in Cheshire. As a native New Yorker, who spent many years in Chicago, she feels particularly qualified to declare New Haven pizza to be the best in the United States.

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.

Yaseen Eldik

Associate Director of Diversity, Equity, and Inclusion
Room RM 92

Prior to joining Yale Law School, Yaseen Eldik practiced as a corporate attorney at the law firm of Skadden, Arps, Slate, Meagher & Flom LLP in New York City. At Skadden, Yaseen was actively involved with several employee affinity groups designed to express and enhance the firm's commitment to diversity. In addition to his day job, Yaseen is a video op-ed contributor to the New York Times Opinion section and Co-Chair of the Gucci Changemakers Council, the company's effort to promote diversity in the fashion industry. Yaseen is a 2016 graduate of Harvard Law School, where he was a lead coordinator of the 2015 Pan-Harvard LGBTQ Conference. He also joined other Muslim law students to launch an initiative called “Your Voice Matters” to encourage Muslim youth to engage in cross-religious and multicultural dialogue. Through the Harvard Negotiation and Mediation Clinical Program, he has represented clients as they sought to resolve workplace disputes. For his work supporting community and diversity, he received the David Westfall Memorial Award for Community Leadership. Prior to law school, Yaseen studied psychology and sociology at Stony Brook University, where he received the Harry S. Truman Scholarship, and worked in the Obama Administration's White House Office of Faith-Based and Neighborhood Partnerships. His writings have appeared in The New York Times, the Stanford Journal of Civil Rights and Civil Liberties, the Harvard Negotiation Law Review Online, and on the White House blog.

Cat Kirchhoff

Assistant Director of Student Affairs
Room RM 90

Cat (she/her/hers) 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 plans and executes activities including Orientation, Professionalism Programs, Academic Programs, Wellness Programs, and class-specific events. Cat joined the Office of Student Affairs after overseeing summer internships and professional development at Columbia Law School for students interested in government and public interest careers. Prior to that, she served as the National Community Education and Policy Associate at Lambda Legal. Cat has a dog (ha), Gatsby, who she always finds a way to mention in any and every conversation. She is also still on the lookout for a good cup of coffee in the state of CT -- recommendations are accepted on a rolling basis.

Christine M. Jolly

Student Activities Program Coordinator
Room RM 85

Christine is the Student Activities Program Coordinator. In her role, she acts as a support to OSA staff by assisting the in the daily operations of the office, while also tasked with helping to oversee the Yale Law Student Journals. Prior to working at at Yale Law School, Christine spent two years working at the State University of New York's Global Center in New York City as their Events Coordinator. She earned a Graduate Certificate in International Education Management, her Master of Science in Educational Policy and Leadership, and her Bachelor of Arts in Political Science all through the SUNY system at the State University of New York at Albany.

Marie Carrano

Senior Administrative Assistant
Room RM 85

Marie Carrano joined Yale University in 2005 and has been a team member in the Office of Student Affairs ever since. Reporting to the Director of Student Affairs, Marie manages the OSA Front Office and provides administrative support to the Dean of Students and OSA directors. In addition, Marie provides planning and logistical support for Orientation, student organization activities, student-run conferences, and processes all student organization expenses (reimbursements, booking speaker hotel rooms, ground transfers, etc.). Marie also serves as the assistant to the Dean of Facilities and assists with coordinating Commencement and end of year activities, including the Community Picnic and Graduation Banquet.

Prior to joining Yale, Marie worked for Bayer Pharmaceuticals for 15 years, where her most recent role was as a Meeting Planner. At Bayer, Marie worked and traveled with the Meetings Department Planning Team, planned and organized various Sales Meetings, Product Launches and Senior Executive Meetings both regionally and across the United States.

Marie is a New Haven native and presently lives in Morris Cove with her husband Philip and beloved Beagle Teddy. She has two grown daughters, loves to read, travel, go for long rides on her husband’s Harley Davidson, cook and bake for her family, friends and YLS students!


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.