promisory note

Question

i need a note for a workeer to sign promising to remove boulders from my property . his final pay will be withheld until the stones are removed.

Answer 1

Al firmar este documento prometo desplazar las rocas del inmueble de (your name here sansan). Entiendo que no voy a recibir mi paga hasta que yo desplace las rocas.

Upon signing this document I promise to remove the rocks form Sansan's property. I understand that I am not going to receive my pay until I remove the rocks.