For parties who contract directly with the property owner, the lien deadline in Louisiana is 60 days from the end of the entire project, or, if a Notice of Termination was filed, 60 days from the filing of that notice.
For parties who contracted with somebody other than the property owner, the deadline by which a lien must be filed is 60 days from completion of the entire project (or filing of Notice of Termination); or 30 days from the filing of a Notice of Substantial Completion.
In no cases, though, is the lien deadline in Louisiana calculated based on the lien claimant's own last furnishing date, unless it happens to be the end of the project, as well.