What are the major issues in locating a cantor or rabbi for my interfaith ceremony?
First, all Orthodox and Conservative rabbis and cantors as well as most Reform and Reconstructionists will routinely refuse to officiate at interfaith ceremonies. There is, however, a legitimate group from the latter denominations that will officiate. The major issue seems to be the wide variety of conditions that dictate officiation. Suffice it to say, few rabbis and cantors will officiate with the broad latitude that most couples desire.
