In the event of a dispute in the future similar to a dispute, this contract, duly notarized, will be considered as a receipt of money for the restitution of the counter-performance of sale by the court. You can also use a notary to see the parties sign the contract. While it is optional, the use of a notary provides stronger proof of the validity of the document in the event of a dispute. If you hand over a notary to the new company, wait until you are with him to sign the agreement. No, this document does not need to be signed by a notary, as it is not filed with the County Recorder`s Office. 2) It is always advisable to insist on a registered sales contract Continue with our sales contract questionnaire that will guide you in the reflection when establishing a sales contract. Note that the questions displayed change based on your answers. This way, the form can be tailored to your specific needs. 1) The notarized sales contract is binding between the parties 3. Section 53-A has no connection with the registration of the contract of sale based on the authentic instrument. As a general rule, contracts do not have to be certified notarized, since the signed contract itself is legally binding. However, in the event of a potential dispute between the parties, it can be very advantageous to have the contract certified on a notarized basis. A notary will provide proof that the parties have concluded the contract.