Our sale agreement supports the welfare of each chorus k itten for the course of its life. Webthe sale of the cat or kitten shall occur on the ____ day of __________________, 20____ with either: Webspay/neuter agreement this cat is being sold with no breeding rights and on a spay/neuter agreement. Initial the buyer agrees that the kitten will be spayed/neutered by the time. Weba cat/kitten bill of sale is an official document that outlines the details of the sale of a cat or kitten. Whether you’re part of a cat adoption center or are an independent breeder, this.