Lehmann received the Covenant Foundation award for Jewish education in 2001 and that same year received the Benjamin Shevach award in Jewish educational leadership from Hebrew College. In 2016 he received the Rabbinic award from CJP, the Jewish Federation of Greater Boston. He has studied and taught at the Shalom Hartman Institute where he co-founded the Training Institute for Community High Schools of North America, the Melamdim Jewish day school teacher training program, and the Hevruta Gap year program, a partnership between Hebrew College and the Shalom Hartman Institute. He has also studied and taught at the Center for Learning and Leadership (CLAL) founded by Rabbi Irving Greenberg, where he was a Wexner Heritage Foundation fellow.
