Letter of Resignation. This form cannot be hand written.The letter includes the business entity number and signature of the resigning person. It also lists any other positions the person would like to resign from. Download this free resignation letter template below and have it customized for your unique business legal needs today. Share this document. Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. A resignation letter form is a tool for employees who want to leave their current position for a new one. A resignation letter form is a tool for employees who want to leave their current position for a new one. Adhere to the outlined plan in the resignation letter.