Colorado Revised Statutes Title 38. Property Real and Personal § 38-22.5-107. Conditions on validity of lien--subsequent service of notice to owner--action commenced within six months

(1) No lien claimed by virtue of this article shall hold the property longer than ten days after the recording of the notice of lien under section 38-22.5-104 unless the real estate broker provides a copy of the notice of lien to the owner or owner's agent by personal service or by registered or certified mail, return receipt requested, addressed to the last-known address of such person, within ten days after recording the notice of lien.

(2) No lien claimed by virtue of this article shall hold the property longer than six months after the recording of the notice of lien under section 38-22.5-104 unless an action to foreclose the lien has been commenced within that time and unless also a notice stating that such action has been commenced is filed for record within that time in the office of the county clerk and recorder of the county in which the property is situated. Where two or more liens under this article are claimed of record against the same property, the commencement of any action and the filing of the notice of the commencement of such action within that time by any one or more of such lien claimants in which action all the lien claimants as appear of record are made parties, either plaintiff or defendant, shall be sufficient.