Please, Please, Please also consider surrendering him to a "reputable" Yorkie Breed Specific Rescue Group in your area!
If you are set on rehoming him yourself, please be careful and do your research of the family. Always go to the home of the family you are considering to do a home check. There are many unscrupulous people out there just looking for kind unsuspecting people.
If you have any questions are what you should ask an applying family or how to do a home check, please pm me, ok?
I am a foster mom for Yorkshire Terrier National Rescue and you can contact them also if you have any questions or any other rescue group, too.
www.yorkierescue.com