Hi xkiyosan,
Sorry I had to edit and close your thread due to the rules of the forum. If the only reason your asking for an adoption fee is because your afraid of people trying to take advantage of a free dog, may I suggest you try posting at this website?
SGShelties.com | Shetland Sheepdogs in Singapore
Facebook:
Singapore Shetland Sheepdog Fan Club (SSS) | Facebook
This website is run by 2 shetland owners both of whom are very experienced in keeping, rescuing, rehabilitating and rehoming dogs especially shetland sheepdogs. If you are willing to let them help you, they know how to properly screen new adopters, as well as how to guide them if they are new to the sheltie breed and will definitely help you find the best family there is to take in your sheltie.
Then there will be no need to force the adopter to have to pay a fee and you will have peace of mind knowing your dog is in a good home.