Include the full legal names, addresses, and contact information of both the seller and the buyer. This information helps identify the parties involved.The Notary Public Handbook is designed to supplement your course of study, which will prepare you for the notary public examination. How do I form a business entity in California? A business entity can be formed in California online at bizfileOnline.sos.ca.gov. A fully customizable California bill of sale template. Whether you're buying or selling a vehicle, boat, or personal property, our template makes it easy. In general, business contracts do not need to be notarized unless there are circumstances inherent in the transaction.