La. Civ. Code art. 1514
Current with operative changes from the 2024 Third Special Legislative Session
A forced heir may request security when a usufruct in favor of a surviving spouse affects his legitime and he is not a child of the surviving spouse. A forced heir may also request security to the extent that a surviving spouse's usufruct over the legitime affects separate property. The court may order the execution of notes, mortgages, or other documents as it deems necessary, or may impose a mortgage or lien on either community or separate property, movable or immovable, as security.
La. C.C. § 1514