Simple mandate: the sale is entrusted to several real estate agencies and the seller to the possibility of finding himself a buyer
Exclusive mandate: a single real estate trader is responsible for the sale of the property. These two types of contracts are generally of a duration of 3 months renewable by automatic renewal. (exclusive or semi-exclusive)
Semi-exclusive mandate: the seller can then look for a buyer himself, but he will have to refer him to the real estate negotiator holding the mandate.