It is with great sadness that Matzav.com reports the petirah of Rav Mordechai Yissachar Ber Leifer zt”l, the Pittsburger Rebbe. He was 64.

Since succeeding his father, Rav Avrohom Abba Leifer, as rebbe in 1990, the rebbe expanded the presence of Pittsburgh Chassidus in Ashdod, Israel with new mosdos and institutions, and increased the number of Pittsburger mishpachos in Ashdod. He also led kehillos in Yerushalayim, Bnei Brak, Beis Chilkia, New York and California.

The rebbe wes a son of Rav Avrohom Abba Leifer and a grandson of Rav Yosef Leifer, the founder of the Chassidus in Pittsburgh, Pennsylvania in 1924.

The rebbe was born in Newark, New Jersey, where his father taught Torah and eventually founded a yeshiva there.... Read More: MATZAV