Rabbi Tessler is a talmid of Yeshivas Ohr Hameir in Peekskill, New York. After marrying and settling in Eretz Yisrael, he learned in Yeshivat Chevrat Ahavat Shalom under Rabbi Yaakov Hillel before becoming a first-seder rebbi in Yeshivas Aderes Hatorah, headed by Rabbi Senter, where he taught for five years. During his years in Eretz Yisrael, Rabbi Tessler developed deep relationships with Rabbi Shmuel Weiner and Rabbi Leizer Haltufsky, with whom he remains in close contact, and received semichah from Rabbi Zalman Nechemia Goldberg.
Rabbi Tessler is a sought-after chassan rebbi, as well as an EMT and a graduate of Harvard Business School Online. Upon moving to Toronto, he became the director of first seder at the Thornhill Torah Educational Center, where he gives the daily shiur.