Guilds may change their guild leadership through the "Guild" menu page in-game. Click "Manage" > Set Guild Master > Type in the new name > Click "OK".
ONLY THE CURRENT GUILD MASTER CAN CHANGE THE LEADERSHIP OF THEIR GUILD
Exception: If a Guild Master has been inactive for more than a year, one member from the guild can request leadership be passed. However, the guild master MUST be inactive for more than a year, there is no exception to this.
If you would like to change the Master of your guild, please submit a ticket to Player Support to assist with this. When you submit your ticket please include the Guild Name, The current Guild Master, and which character the Guild Master should be moved to.