Ok, so I think my FI & I have found ourselves in a bad spot:
We've asked one of our best friends to be our officiant. When we asked, he said that he'd be happy to as long as it wasn't in a Church and it wouldn't be a problem with his (Catholic) religion. I've since done some research, and although the Church doesn't care if a Catholic judge or captain or something marries a couple outside of Church, getting ordained online by another "church" is really not cool in their eyes.
Separately, one of my bridesmen and one of FI's groomsmen both are ordained (online) already, and both offered to officiate way back when we got engaged. We asked our third friend because he's equally close to both of us and we couldn't agree on a side for him, whereas the others have closer relationships to either me or FI - though all 5 of us are very good friends.
Here's my plan. I'd like the etiquette-board blessing on this, or all of your advice on how to go about this:
1. Ask officiant friend to chat with his priest about this. Maybe it's fine, but maybe not - I definitely want him to know now, when we have plenty of time to change plans.
2. Here's the part I'm not sure about as far as etiquette goes: If it's a problem, ask either the groomsman or the bridesman to officiate, and ask the current officiant to be in the wedding party, essentially switching out roles. I don't want to treat my friends as though they're interchangeable (they're definitely not!), but I'd rather do that than ask a friend to go against his religion.