Rav Kaiser was born and raised in Toronto, Canada. After learning in the Mesivta of Long Beach. He spent many years studying in the Brisker Kollel in Eretz Yisroel after his marriage and then received semicha from Beth Medrash Govoha in Lakewood, NJ. He currently resides in Monsey, NY, where he is the Rav of Kehillas Zichron Yaakov and teaches in Yeshiva Kesser Torah, and in the Kollel Shaarei Halacha. He has authored the Halachos of Sukkah, distributed by Feldheim, along with other written works. He teaches a fantastic Halacha Chaburah on Wednesday Nights, a Halacha shiur to Teens on Thursday Nights, and has been a member of the New Rochelle Torah Center for 5 years.