What information do I need to send a Pre-lien Notice Letter?

Project Information: Owner, name of project, common address (or legal property description), county where the project is located.
Subcontractors: Name (or company name) and mailing address of the General (Prime) Contractor.
Sub-subcontractors: It is not required but preferred to have the name and mailing address of all Subcontractors involved in the contract chain.
Work: Invoice dates, description of the unpaid work performed and the amount owed per each individual month.