You (or the purchaser or transferee) must complete Form CBS-1, Notice of Sale, Purchase, or Transfer of Business Assets. Learn how to complete an Illinois Bill of Sale form with this concise guide, ensuring a legal transfer of ownership and documentation.You can fill out the Transfer Document and then bring it to a notary. Easily create a clear Illinois bill of sale with our customizable template. Save time and ensure a smooth transfer of ownership. The form will have a space for the signature and seal of a notary public. The following are basic rules for proper and safe notarization: 1) Keep your notary seal in a safe place; 2) Do not notarize a signature unless the signer. Forms on this website are PDFs with fillable fields. Forms should be downloaded to your computer before filling in the fields.