Louisiana Civil Code Tit. IX, Art. 2679. Limits of contractual freedom in fixing the term

The duration of a term may not exceed ninety-nine years. If the lease provides for a longer term or contains an option to extend the term to more than ninety-nine years, the term shall be reduced to ninety-nine years.

If the term's duration depends solely on the will of the lessor or the lessee and the parties have not agreed on a maximum duration, the duration is determined in accordance with the following Article.