There will be times when customers see this form in their mailbox. Its customary for material suppliers, workers and sub contractors to send them out to the home owners. The reason for this is because the homeowner is not in privity with these people. It is basically saying ,”You don’t know me . I supplied labor or materials to your property. If I do not get paid I can place a lien on your property”. As the pool company it is illegal for us to ask them to not send them. They do not mean the bill is late or not being paid. The customer knows now to ask for a release of lien for the vendors that provided them with the NTO. If you have a large project you can expect to get one eventually. Its normal business operations.