 Since 1975 he has been the Chaplain of the City of Boston (serving the Boston Police and Fire Departments, Mayor's Office, and other City departments and agencies) and spiritual leader of Congregation Bnai Jacob, Zvhil–Mezhbizh Beit Medrash of Boston, Miami, and Jerusalem, Israel, serving also with the Chief Rabbis of Israel as Spiritual Leader of The Jerusalem Great Synagogue.He is a "dayan" (judge of Jewish law) of the BaDaTz Boston "Beth din" (rabbinical court) and "Vaad HaRabbonim" (council of rabbis).He is also principal of Korff Associates, consultants in business, diplomacy and international law and relations, Consul to the government of Austria and publisher of the Boston-based Jewish newspaper "The Jewish Advocate".