 Fendel is a son of Rabbi Meyer Fendel, founder of Hebrew Academy of Nassau County, and the brother of Rabbi Dovid Fendel, founder of the Hesder Yeshiva of Sderot.He is a nephew of Rabbi Zechariah Fendel, the late Orthodox Jewish educator and author.He is also a great-grandson of Zecharia Dershowitz , founder of one of the first Yiddish communities in America, and a grand-nephew of Louis Dershowitz, one of the original founders of Yeshiva Torah Vodaas of Brooklyn, NY.