A Florida Notice of Commencement is a legal document that is filed with the county's clerk's office to provide public notice of construction activities on a given property. The document informs the public of the commencement of construction work and allows for the claimant of construction liens. There are two types of Florida Notices of Commencement: 1. Preliminary Notice: This notice should be filed prior to the commencement of construction work and serves as an official record that construction has not yet begun. 2. Final Notice: This notice should be filed after the commencement of construction work and serves as an official record that construction has been completed. By filing a Florida Notice of Commencement, contractors and subcontractors are allowed to place a claim of lien on the property in the event of non-payment. This document is legally required when construction work is done on certain properties in the state of Florida.