His rabbinical court handled various matters, including financial disputes, marriage conflicts, and
conversions. He was also a member of the
Vaad Halacha (Jewish legal council) of the
Maayanei Hayeshua Hospital of Bnei Brak and the
av beis din of the Bnei Brak neighborhood of
Ramat Aharon. Karelitz's
beit din in Israel performs conversions on people who are residing illegally in the state of Israel. This means several things: (1) The conversion process goes against Israeli law which gives the state more reason to reject such 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). ==Published works==