Here they are:
1) If you didn’t contract with the property owner, within 20 days after first providing materials or services to a project, you must deliver a Preliminary 20-Day Notice to their customer, the property owner, the general contractor and the construction lender.
2) Failing to provide the Preliminary 20-Day Notice is grounds for disciplinary action by the Registrar of Contractors.
3) Mechanics Liens must be recorded either: (a) within 90 days from completion of project if Notice of Completion or Cessation is not recorded; or (b) within 30 days from completion of project if Notice of Completion or Cessation is recorded. Prime contractors have 60 days.
4) Your construction lien does not last forever. You must file an action to foreclose on your lien within 90 days of its filing.
5) If you don’t file an action to foreclose on your lien, the contractor must record a Mechanic’s Lien Release. Failure to do so could subject the claimant to statutory penalties of up to $2000 for property owner’s legal costs in getting the lien removed.