Howdy here! I'm sorry it's taken a while for anyone to get back to you on this (if you haven't been helped via note already)
It says here (from the FAQ)
GLADIEN OWNERSHIP, TRADING, SELLING - Co-owning is not allowed. (Because of drama) - Trading and selling for an appropriate price is fine so long as you alert the group (In a note) of new ownership.
Please send a note to the group itself and a member of the Gladien team will get back to you on your situation. However, if you have trouble getting in contact with anyone, you should note the species owner, xKoday directly. If you're unable to reach them, get in touch with me and I'll see if I can't get in contact with them myself. ^^
I hope you resolve your ownership change soon. Have a wonderful day/night! -Howl