I was forgotten in my mother's estate because my brothers and sisters did not warn me (family conflict). It's been 14 years. What are my rights ?

An heir may have been forgotten intentionally or involuntarily. In both cases, this heir who is omitted must make himself known to the notary in charge of the succession before the expiration of a period of 10 years following the death. We speak of "petition of heredity."

Not having taken part within this time, you are deemed to have renounced the estate.