I am looking for a Lien Waiver that a builder signs when construction has already been started on a house before the bank/lender has recorded their Deed of Trust.

The borrower/owner of the land, had the builder begin construction of their new home before the Bank/Lender had their Deed of Trust recorded. I am looking for a Lien Waiver for the Builder to sign for the work done prior to the Deed of Trust being recorded.