Shmaryahu Yosef Nissim Karelitz (Hebrew: נסים קרליץ; July 19, 1926 – October 21, 2019)[1][2] was an Orthodox Jewish rabbi and posek who served as the chairman of the beis din tzedek (rabbinical court) of Bnei Brak.

Karelitz was born in 1926 in Kosava (Kossov), Vilnius province, Poland, presently in Belarus.

From the time of the Chazon Ish until Karelitz it was Rav Elazar Shach who was regarded as the pre-eminent leader.

His rabbinical court handled various matters, including financial disputes, marriage conflicts, and conversions.

(2) The converts, who often live many years illegally in Israel, are eventually forced to leave (deportation, or due to lack of financial means to support oneself).