Need help drafting a job offer letter? You have zero legal obligation to go to any job, except in very rare circumstances.You can be hired or quit at any time. When does the offer letter you sent to the candidate expire? This company where I worked in the past was set-up for seven days. Here, you'll find guidance on constructing and tailoring an employment offer letter template to align with your specific requirements. Before the offer letters are rolled out, the date of joining is discussed and different people react differently. In this blog, you'll learn how to write a joining letter. May I humbly request an extension to the commencement date for me at your organization, of which I am very keen to be a part of?