The sale and purchase agreement is a document that specifically identifies the buyer, the seller, the property, its price, and the closing date.
Signed by both parties, it represents a firm and final commitment. Each party has a 7-day cooling off period.
Only the final deed of sale requires the participation of a Notary. You can therefore sign the sale and purchase agreement with the seller, without any intermediary. This is consequently an instrument under private writing. This formula has the advantage of being quick and it avoids drafting fees. The only disadvantage is the lack of advice if some points need to be clarified.