Employment Offer Letter Instructions. Need help drafting a job offer letter?Make a job offer and outline the responsibilities of the role. A cover letter is a three- to four-paragraph memo to employers that explains your interest in the job and company as well as your qualifications for the role. Many of the forms need to be downloaded before you can make edits. Learn what to include in a job offer letter and use our ready made template. Applying for a job with Maricopa County at jobs.maricopa. Gov is a simple online process. In the formal offer letter, provide comprehensive details about the position, compensation, benefits, and other pertinent terms.