An accomplished educational professional in the halachic tradition of Judaism, Rabbi Leib Tropper delivered speeches across the world. As Director of the Yeshiva Kol Yaakov, founded in 1981, Rabbi Tropper led the efforts in creating a program called Horizons. An outreach program targeting secular Jews who are unaffiliated with the religion, Rabbi Tropper visited Paris, London, and Berlin, among others, where he delivered speeches and lectured at colleges with the goal of inspiring his brethren to explore the Torah, and live in greater concert with Talmudic teachings. The Horizons program also led Rabbi Tropper to rural American towns and remote cities. Through the school itself, open for almost 30 years, he connected with talmid around the world. As a religious educator, he has lectured at Oxford and Cambridge in London, and at Stanford, Yale, and other American universities. Additionally, Rabbi Leib Tropper taught subjects such as Jewish law and philosophy in Brooklyn and Manhattan at no charge to the institution.
As a Jewish scholar, Rabbi Leib Tropper has published multiple works. Early in his career, he focused on seforim, publishing the first when he was just 21 years old. The work built on the halachic decisions of Harav Eliyashuv shlita. Two subsequent seforim also focused on p’oskim and their halachic decision, these being his personal Rabbi, Maran Harav Scheinberg, shlit”a, and Rav Tuvia Goldstein zt’l. The works received praise by multiple gedolim. In the past two years, Rabbi Leib Tropper published two books on Jewish Responsa. Rabbi Tropper continues his halachic scholarship as he explores how the ancient traditions of Judaism interact with organ transplants.
Rabbi Leib Tropper received his ordinations during a five-year period he spent teaching baalei teshuva in Jerusalem. The ordinations were from, in chronological order, Hagaon Harav Sroyohu Deblitzky shlita, a talmid muvhak of the Chazon Ish zt”l, the former Sephardic Chief Rabbi, Rav Ovadia Yosef shlit”a, the chief Rabbi of Jerusalem, Harav Betzalel Zolty, and Maran Harav Elazar M Shach zt”l, the Ponevezher Rosh Yeshiva who only bestowed three ordinations, one on Rabbi Tropper.