what is a lien waiver 
a lien waiver is a written agreement between a payer and a counterparty where said counterparty gives up their right to place a lien on the payer s property or goods understanding lien waiversa lien waiver is quite common in the construction business essentially it is a document from a contractor subcontractor supplier or another party who holds a mechanic s lien that states they have been paid in full and waive future lien rights to the disputed property in the united states many states only recognize conditional waivers on progress payments and unconditional waivers upon final payments just as a mechanic s lien can be a great aid to those seeking payment for services rendered a lien waiver can be beneficial for owners that have made full or partial payments generally there are four types of lien waivers 