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. A cover letter requires the job-seeker to answer the most important questions on the mind of the committee chair or committee.State why you are writing, which position you are applying for and where you learned about the position. We consider applicants for all positions without regard to race, color, religion, sex, national origin, age, disability or veteran status. Applying for a job with Maricopa County at jobs.maricopa. Gov is a simple online process. You'll need to write a 'Letter of Justification' explaining why you believe you deserve the grant. Read and follow application instructions carefully. Indicate your employment history since completing your formal education. List your current position first.