Switching Rites To Marry?

[Vico]

Its not necessary to switch rites to marry an Eastern Catholic girl or fellow, and it isn’t necessary to switch rites to attend the Eastern Catholic liturgy regularly or to study its theology.

There is one complicating matter to consider for a Latin Catholic groom marrying an Eastern Catholic bride, if you are not content marrying in the Latin Church (which cannot be before a deacon but must be a priest), you may not be able to marry (CCEO 831). If a Latin groom does marry an Eastern bride, he can then switch to the Eastern Church (CIC 112).

CCEO Canon 831 § 2:
The marriage is to be celebrated before the pastor of the groom, unless either particular law determines otherwise or a just cause excuses.

CIC Canon 112 §1. After the reception of baptism, the following are enrolled in another ritual Church sui iuris:
…
2/ a spouse who, at the time of or during marriage, has declared that he or she is transferring to the ritual Church sui iuris of the other spouse; when the marriage has ended, however, the person can freely return to the Latin Church;
…