Upon purchasing, you own the character. You may do whatever you wish with them, including using them for commercial work, you just can not use my art commercially.
Please credit me for the design where necessary.
Trading the adopt is fine, but if possible I'd like to be notified of where it goes (not necessary, but it would be appreciated, as I'd like to change who the character belongs to on the deviation to prevent any confusion!)
You may resell the adopt but for no more than what you spent on it. I'd also like to know where it goes, as stated above.
I still retain the right to post the art of the adoptable in my gallery/portfolio. I will credit ownership of the character to whomever bought them, of course!