Should a gentile be converted to marry a Jew?

Answer 1

Judaism does not proselytize or seek converts, but it does accept sincere converts. Conversion for marriage is not a sincere reason. Better to marry within your own religion.

If a non-Jew does convert properly, a Jew may marry them.
Conversion is a life-changing and very serious undertaking and a potential convert should think it over carefully. It must not be done on a whim or because of temporary circumstances. One who converts is expected (from then on) to live as a Jew.

See also:

Can_a_Christian_and_Jew_get_married

Answer 2

While I defer to my colleague Dan Galilee on the seriousness of converting to Judaism, most Jews would request that a Non-Jewish spouse convert to Judaism as it is very badly seen in the Jewish community for a Jew to marry outside of the faith. This is because intermarriage is seen as a form of cultural assimilation that will lead to the disappearance of Jewish heritage, ancestry, and identity.