Commercial - No Requirement: NACM suggests serving notice 45 days from last furnishing to prompt payment.
Residential – 4 or less dwellings, serve owner and FILE with the county recorder within 20 daysof first furnishing. See exception inSpeed Bumps. File Notice of Right to Claim a Lien within 5 business days of serving owner. On residential projects in Montana MLBS protocol is to mail notices only on projects $5,000.00 or less to help prompt payment. To be fully protected to have lien rights on residential projects the "Notice of Right to Claim a Lien" must be recorded. MLBS engages an Attorney (Attorney Produced NTO) to serve and record these notices which can become very costly.
Laborers - No Requirement: NACM suggests serving notice 45 days from last furnishing to prompt payment.
Step 2: Lien
The earlier of90 days of last furnishing or 90 days of the owner’s Notice of Completion.