Q. See question above: When officiating at a wedding of irreligious people,
please also determine if mikva of bride is also a deal breaker for officiating.
A. On question 257 Arranging a shidduch when the couple does not observe Taharas Hamishpacha.
"Is it permissible to arrange a shidduch if it is possible that the couple isn’t religious enough to keep Taharas Hamishpacha?
A. Some Poskim maintain that there is no prohibition on arranging, helping or being mesader kidushin (performing the wedding ceremony) of a couple that does not observe taharas hamishpacha (family purity laws). Many require that the couple should commit to at least go once, prior to the marriage to the mikvah. (Minchas Yitzchok 1,10 ' Chelkas Yaakov 1, 23 – Sridey Eish 2, 57 and 3, 28 ' Hapardes year 13 vol. 5,7, 11 and year 23 vol.1 – Hilel Oimer Y.D. 67 – Hashavit Y.D. p.167). See also questions 1093 and 308'.
Rabbi A. Bartfeld as revised by, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit'a