We have rarely ever received Notices of Completion at the end of a job, even when we send a preliminary notice which formally requests it. Is our timeline to file a lien still shortened to 30 days even if we don't receive a copy of the Notice of Completion? What if the property owner files a Notice of Completion but does not send us a copy and we file a lien after the 30 days but within the 90 days - is our lien still valid?