Thank you for your help Msinflatable
Got a link to someplace I can get official clarification on how to do that?
Not a problem at all. From the last FCM in Europe,
Guild Transfer: Although Free Guild Master Realm Transfers are not possible at this time, the Free Character Migration will allow you to retain your guild membership and reputation, provided that the guild master completes a Guild Master Realm Transfer first and the faction remains the same as that of the source realm.