570
Question
Can a Jewish man married to a non-Jewish woman be allowed to lead the service?
Answer
No, he cannot lead the service as he is regarded by several of the Poskim a Mumar and therefore it is preferable that he only says Kaddish.
Rabbi Ro'i Margalit

Charity for non-Jews
Rabbi Elchanan Lewis | Sivan 3, 5769

Missing Mincha
Rabbi Elchanan Lewis | Cheshvan 15, 5769

Marriages Between Ashkenazim and Sephardim
Rabbi Ari Shvat | Shevat 25, 5780
