What if the "head" of the religion doesn't want it?
What if the highest ranking guy isn't the active leader?
What if there are multiples at the highest rank?
To add to Penchant's argument:
What if a Duke doesn't want to sign with the title of duke? We're nobles, signing with your titles is natural. The fact that "Priest of (Insert religion here)" already exists, I don't think this a valid argument, seeing as the title of priest might not even fit into the hierarchy of the person's religion and is equally not a choice.
Then make it for all the elders. Honestly, I believe
most, if not all religions have the highest rank as the leader.
Then have both signed, since they would be co-leaders, or have all the elders have a signature, as mentioned and supported above.
