Subcontractor who residential property owner doesn’t even know exists sends to the owner a Notice of Non-payment, then a Notice of Lien. Does subcontractor on residential renovation have lien rights? Notice of Lien is dated 8/10/20 for work last allegedly done in April 2020. If lien is filed, is it defective as untimely? Is unidentified subcontractor exposed to suit for damages? Thank you.