Can an estate be renounced?

Yes, with some exceptions, you generally have six (6) months following the death to renounce an estate. This renunciation must be signed before a notary and published in the Register of Personal and Movable Real Rights.

In order to renounce, a person must not have performed any act of acceptance of the succession. Caution is therefore required.
In order to avoid being exposed to any liability, it is prudent to contact a legal advisor promptly.