My parents gave me a donation from an apartment in 1999. My father deceased in 2001 and my mother died. I want to sell the property but the notaire assures me that I need the agreement of my brother and sister. Why ?

When a donation exceeds the amount available (depending on the number of children), the donee (the recipient) must compensate the heirs who are the beneficiaries (children and their surviving spouse's absence) up to the amount that exceeds this quota.

However, in the event of the insolvency of the donee, the heirs who are reservists may bring an action against the purchaser of his property, unless they have consented to the sale.

That is why the notaire, in order to protect your buyer from any claim of your brother and your sister, requires that they agree to the sale of your apartment.