Learn what to include in a job offer letter and use our ready made template. The email serves as your informal offer letter.An offer letter focuses on the key details of employment. Start a job offer letter with "Dear" and the candidate's first and last name. Let them know that your company is enthusiastic about the job offer. In this article, we discuss what's in a job offer letter with steps on how to respond to one and an example you can review. A sample letter offering a job contingent upon the results of a background check or other criteria. Learn how to write effective resumes and cover letters, view sample resumes and cover letters, and get tips for completing job applications. An employer can use this letter when offering at-will employment to its desired candidate in New York. A onesizefitsall approach will not work for your offer letters.