First see what your home is worth. Then start preparing early and without obligation: free, for as long as you like.
The compromis, the private sale agreement, records the agreement between buyer and seller: the property, the price and the conditions. Once both parties sign, the sale is in principle final.
The buyer often pays a deposit at the sale agreement, which the notary holds in custody until the deed.
The authentic deed is executed at the notary and provides the official transfer of ownership. Only then are the keys handed over and the rest of the price paid.
The sale agreement must be registered within four months after signing. That is why buyer and seller usually sign the deed within that period: the notary then registers everything in one go. It is not a legal maximum for the deed itself; you agree the date in the sale agreement. In that period the notary arranges the necessary searches and the registration duty, which as a rule is paid by the buyer, with a reduced rate for the sole family home.
You prepare your sales dossier for free, at your own pace. How you sell afterwards, yourself or with a realtor, you choose later.