What things should be included in the Full and Final Settlement Letter? Access our detailed guide and free template for full and final settlement letter.Learn how to effectively document employee settlements. Use this form if you are an employee and wish to send us details about your settlement agreement. The full form of FnF is Full and Final Settlement. It refers to the process of clearing all dues owed to the departing employee. Full-and-Final-Settlement-letter - Free download as Word Doc (. Sample Full and Final Settlement Letter. If you didn't receive an email or letter, or lost your number, complete our contact form. A Settlement Offer Letter is a communication between two parties in a dispute.