Seth M. Marnin headshot.

Seth M. Marnin, Chair

Director of Training and Education, Office of Equal Opportunity and Affirmative Action at Columbia University


Seth M. Marnin is the Director of Training and Education for the Office of Equal Opportunity and Affirmative Action at Columbia University. In this role, he leads Columbia’s harassment and discrimination prevention efforts. Seth is a longtime leader and advocate in higher education and the law. He began his career in student affairs and residential life at the University at Albany; he later joined the University of Connecticut as the Director of Gay, Lesbian, Bisexual, and Transgender Resources. He moved from higher education to practicing employment law at Outten & Golden LLP and subsequently served as the Vice President for Civil Rights at the Anti-Defamation League (ADL) where he oversaw ADL’s domestic civil rights agenda. Before joining Columbia University, Seth founded Workplace Strategies, a consulting firm advising non-profits on a range of legal issues related to nondiscrimination, sexual harassment, equal opportunity, and affirmative action.

Seth has spoken nationally and internationally on LGBTQ issues, hate crime laws, discrimination, civil rights, religious liberty, the First Amendment and academic freedom. He co-authored friend-of-the-court briefs in numerous cases before the U.S. Supreme Court and appellate courts around the country, including Obergefell and Windsor.

He previously served on the planning committee for the National LGBT Bar Association’s Transgender Roundtable, the World Professional Organization for Transgender Health (WPATH) Legal Committee, and as a board member for Out for Work. Seth resides in New York City with his wife and their blended family.

Tamar Prager, Board Secretary

Business Owner


Tamar Prager is a mother, wife, percussionist, and outdoor enthusiast living in Westchester, New York. She comes from a background in health care with years of service in public health and clinical nursing. Tamar founded a consulting business in 2020 called Tamar Prager, teaching people how to radically transform their relationship to their possessions, so they can access freedom and joy in their everyday lives. She received her BA from Barnard College, Columbia University, and her MPH, RN, and NP degrees from Columbia University. Tamar is still active in the public health sphere volunteering in her community to help design community protocols pertaining to the current pandemic. In the past two decades since coming out, she has spoken in synagogues, support groups, and non-profit Jewish organizations with the aim of cultivating awareness about the intersectionality between Jewish and queer worlds. Tamar’s published articles have been featured in print and online publications. In 2006, she wrote the feature article for Lilith magazine entitled “Coming Out in the Orthodox Community.”

Nathan Render headshot.

Nathan Render, Treasurer

Director of Customer Experience, Mockingbird


Nathan Render has worked in the Jewish, foundation, non-profit, and innovation communities for the past several years. He currently works at Mockingbird, a premium direct-to-consumer baby gear company, leading their Customer Experience team. Previously, he worked at CIC, one of the largest clusters of start-ups in the world and whose mission is to fix the world through innovation. At CIC, he managed strategic initiatives for the CEO and served as Director of Operations CIC’s sister non-profit organization, Venture Café, dedicated to connecting innovators to make things happen.

Nathan began his career as the Bronfman Fellow at Hillel: The Foundation for Jewish Campus Life in Washington, DC and later worked at the Einhorn Family Charitable Trust, a family foundation committed to helping people get along better. Most recently, he managed training for the northeast region of EverFi, an education technology company focusing on cultivating critical skills from financial literacy to critical thinking. He received his B.A. from Tufts University in Anthropology and Child Development. He currently serves on the board of the Columbus JCC and on the Executive Board of Temple Israel, Columbus. Nathan lives in Columbus, Ohio with his husband Tal, and their daughters Orly and Naomi.

Idit Klein

President & CEO


ldit is a national leader for social justice with more than 25 years of experience in the non­profit sector. Since 2001, she has served as the leader of Keshet, the national organization for LGBTQ equality in Jewish life. ldit built Keshet from a local organization with an annual budget of $42,000 to a national organization with an annual budget of over $4 million. Under her leadership, Keshet has supported tens of thousands of rabbis, educators, and other Jewish leaders to make LGBTQ equality a communal value and imperative. ldit also spearheaded the creation of leadership development programs for queer Jewish teens and mobilized Jewish communities to help defeat a proposed constitutional amendment to ban same-sex marriage and advance transgender rights in Massachusetts. In addition, she served as the Executive Producer of Keshet’s documentary film, “Hineini: Coming Out in a Jewish High School.”

Prior to leading Keshet, ldit worked in Jerusalem for Israeli-Palestinian peace and helped envision the Jerusalem Open House as a leader in the Israeli LGBTQ rights movement. A magna cum laude graduate of Yale University, ldit earned her Master’s in Education from the University of Massachusetts, Amherst, with a focus on social justice and anti-oppression education. She serves on the advisory board of the Safety Respect Equity Coalition and the leadership team of the Jewish Social Justice Roundtable to strengthen the national Jewish social justice movement. ldit was honored by the Jewish Women’s Archive with a Women Who Dared award as well as by Jewish Women International with a Women to Watch award, and selected for the Forward 50, a list of American Jews who have made enduring contributions to public life. She lives in Boston with her family.

Angel Alvarez-Mapp

Angel Alvarez-Mapp

Founder, Mapp Consulting


Angel Alvarez-Mapp is the Founder of Mapp Consulting. In the past, Angel has served as Chief Operating Officer for Repair the World, Executive Director of Congregation Beth Sholom, and Director of Programs & Operations for Jews of Color Initiative. Angel is a seasoned nonprofit professional with extensive experience in the development of comprehensive strategic plans, capital campaigns, and communication/marketing plans. He has provided strong leadership and strategic direction to organizations for more than ten years.

Angel attended St. Mary’s College of California for Business Administration and the Art Institute of California, San Francisco for Graphic Design. He is a member of the Regional Council for Bend the Arc: A Jewish Partnership for Justice, the Israel & Global committee of the Jewish Community Federation of San Francisco, and a board president of Association Media & Publishing, the premier membership organization serving the needs of non-profit publishers, business operation executives, communications professionals, designers, and content generators. He lives in Los Angeles.

photo of Alyx Bernstein

Alyx Bernstein

Student, Barnard College


Alyx is a student studying Comparative Literature and Talmud at Barnard College and the Jewish Theological Seminary. She writes for Tablet, JGirls, and the Columbia Current, and is a passionate activist for queer rights and feminism. On campus, she is on the board of the traditional egalitarian minyan. Alyx is an alumna and leader of Keshet’s LGBTQ and Ally Teen Shabbatonim, and was the co-chair of the first-ever Keshet Women and Girls Shabbaton. She has a passion for queer ritual, liturgy, and halakhah. When she isn’t working, she can be found drinking iced coffee, reading a good book, or watching one of Star Trek, New Girl, the Chicago Red Stars, or Liverpool FC.



Amy Born

Amy Born

Chief Research and Innovation Officer, Leading Edge


Amy Born has worked in the field of organizational psychology and organizational development for over 15 years. She currently serves as Chief Research and Innovation Officer at Leading Edge and is affiliated with two consulting firms, one focuses on the corporate and government sectors and the other focuses on leadership in public education. In the past Amy was the Director of Talent Acquisition and Development for City Year, a consultant in the Leadership and Talent practice at Hay Group (now Korn Ferry Hay Group), and she started her career as a fellow at Hillel International. She has served on the boards of Hillel International and Joshua Venture Group and is currently a member of the Jewish Studio Project board. Amy has a Master’s Degree in Social and Organizational Psychology from Columbia University and a Bachelor’s Degree in Anthropology and Theatre from Washington University in St. Louis.

Alan Cohen

Alan Cohen

Chief Program Officer, JASA


Alan Cohen has worked for more than 25 years in the international and domestic non-profit, foundation, and corporate social responsibility sectors. Alan currently serves as the chief program officer at JASA. In the past, Alan served as the chief of staff at the American Jewish Joint Distribution Committee (JDC); the director of global corporate social responsibility at Henry Schein, Inc., a Fortune 500® company; as the senior director for strategic planning and organizational resources at UJA-Federation of New York; and as a program officer for JDC’s Former Soviet Union Team. Alan is also on the board of Plaza Jewish Community Chapel. Alan graduated from Brandeis University Magna Cum Laude and Phi Beta Kappa, having studied politics and Russian language and literature. After graduating, Alan was awarded the Dorot Fellowship in Israel and spent five years living in Jerusalem. He received a Master of Public Policy and Administration from Columbia University. Alan participated in the Selah Leadership Program for a national cohort of social justice leaders and received AVODAH: The Jewish Service Corps’s Partner in Justice Award. Alan lives in New York City with his husband, Robert Bank.

Bennett Decker headshot.

Bennett Decker

Program Assistant, T’ruah


Bennett Decker is originally from Philadelphia, Pennsylvania. He was a student at the Joint Program between the Jewish Theological Seminary and Columbia University where he received dual BAs Political Science and Talmud. Bennett currently combines his desire to make the world a more just place and Judaism during his day job at T’ruah: The Rabbinic Call for Human Rights.

Bennett got involved with Keshet for the first time as a participant on the Keshet Teen Shabbaton during his senior year in High School. Since then, Keshet has helped him to find queer Jews to be thought partners, teachers, justice-seekers, and friends together in unique community with. He has also fallen in love with the work that Keshet does, particularly for teens and youth; helping Queer Jews unite those two parts of their identity that Bennett feels are the two most essential parts of his.

Headshot of Johanna Fine

Johanna Fine, SPHR

Chief Human Resources Officer, JCC Chicago


Johanna Fine, SPHR, is the Chief Human Resources Officer at JCC Chicago. She has a BA in Speech Communications, with certifications in Human Resources Management & Diversity and Inclusion. Johanna started her career in Human Resources in 1996 and has spent most of her career in for-profit organizations. In 2015, Johanna felt the need to give back both professionally and personally, and transitioned into non-profit work, joining the American Osteopathic Association as their VP of Human Resources. In January of 2017, Johanna joined JCC Chicago in her current role, and loves being in a community center, visiting with members and preschoolers. Her work includes partnering with Senior Leadership and Managers to develop their succession planning, employee relations, diversity, equity and inclusion, training & development, performance management, and union/labor relations needs.

Johanna was born and raised in Evanston, Illinois and lives with her wife Laurie, and their three teenage daughters. She enjoys taking their boxer mix dog Luna for long walks and has recently started taking up yoga. In addition to being on the Keshet Board, Johanna also serves on committees with her temple and National Runaway Safeline.


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