The buyer's rights
If the seller accepts it, it is possible to set up a unilateral promise of sale, between the owner of the property and yourself, who will be the beneficiary of the promise of sale.
The unilateral promise of sale specifies the conditions of the sale:
The unilateral promise of sale is signed by the seller and the beneficiary. The seller undertakes to sell the property to the beneficiary. The beneficiary has a time limit allowing him to say if he buys the property or not.
Attention: the unilateral promise of sale must be registered, within 10 days of its signature, at the tax office of the place where the property is located. If it is not registered, it is null and void and cannot produce any effect.