The husband had signed the agreement to entirely transfer by way of a donation inter vivos in favor of his legitimate son named Juan one of his properties.
This agreement was signed by both husband and wife. Some of the content of this agreement are dissolution of property relations and disposition of properties, distribution of presumptive legitime.
Husband and wife are now on the process of filling the legal separation documents.
Under this circumstances, can the illigitimate son who is now 6 years old ran after his dad's legitimate son named Juan for his 50% share ? If he cannot ran after Juan now, can he in the future ran after Juan when their dad dies?