My father is single, and we are 4 children. I want to buy a piece of land to give it to the latter. However, I do not wish to be in joint ownership with my brothers and sisters upon his death. I heard about the conventional return clause. What is it about

The return clause inserted in the deed of gift allows the donor to recover ownership of the donated property, either in the event that the beneficiary of the donation dies before him, or in the event of the predecease of the beneficiary and his descendants (art. 951 Civil Code).

It is then the very existence of the donation that is called into question. The donor recovers the donated property, including when the recipient of the donation had sold or given it away. Similarly, the guarantees that the donee could have granted on the property (e.g., mortgage) are deemed never to have been taken.