On commercial property, you can renew the lien the first time without a court order. You can also extend it 2 more times but would need a Court Order. On residential properties, you need a Court Order and can only renew the lien twice.
You can….but it is best to wait until the year is almost up….b/c the 1 year extension will kick in on the date you file the extension, even if there is a month or two left upon the original filing.