The form also documents the sale and is the legal receipt. Most states in the US do not require a notary or public official to witness and authenticate the signing of a bill of sale.Flhsmv form 82053 is a limited power of attorney and isn't required to be notarized. Most states, including California, Texas, and Florida, do not require notarization for a bill of sale to be valid. You do not need a bill of sale unless you or the seller made an error when completing the title. Motor Vehicle, Mobile Home, Off- Highway or Vessel Description. Year. Does a vehicle bill of sale have to be notarized in Florida? No. When you privately sell a car in Florida, the Bill of Sale does not need to be notarized. In FL there's no notary needed, but in NC there is.