I will add one thing to this thread
Here on Byzcath we do have a Latin Rite member married to a Greek Orthodox woman. They were married in the Orthodox Church and their daughter was Baptised [ and of course Chrismated and Communed at that time ]
I remember our member writing very movingly of his feelings later when the whole family went to DL and he [ the Catholic father ] carried his little child down for her reception of the Holy Mysteries .
I'm sure now I have mentioned this experience, that other's will remember . I have not mentioned our member by name - deliberately - for his privacy.
Now back to the original question - which has yet has not been answered
auore asked
I would like to hyphenate my last name with my fiancé’s last name. Will that affect his good standing in the Greek Church?
Does anyone actually know the answer ?