You can send a pm to
Paparick to have your guild added to the
Existing Guilds For Sale topic.
Afterwards, you will need to find a mediator to transfer ownership & then follow then steps below;
1) The current owner accepts the new owner into the guild.
2) The new owner sends the FG that goes to the old owner to a Mediator, as well as 1000 fg for the guild xfer and and additional 500 if you desire a namechange.
3) The new owner pm's the mediator with the desired name for the guild, as well as an alternate choice.
4) Then both owners wait until njaguar has changed the owners.
5) The mediator now will send the old owner the FG.