From UOJ: The LA Tropper is a nephew, the son of Rabbi Dovid Tropper. They both taught in various LA yeshivas. The tapes: http://www.2shared.com/file/10008550/23589caa/Leibs_contract_2.html http://www.2shared.com/file/10008637/e92010d6/Leibs_contract.html http://www.2shared.com/file/10008381/e57caec3/rebbetzinAdmission.html