La. Civ. Code art. 3069
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
No judgment shall be rendered against a legal surety unless the creditor obtains judgment against the principal obligor fixing the amount of the latter's liability to the creditor or unless the amount of that liability has otherwise been fixed. The creditor may join the surety and principal obligor in the same action.
La. C.C. § 3069