The starting paragraph should always begin with your acceptance of the job offer letter. I started at Caltrans on April 11th and got a final job offer letter just a few days after I confirmed my start date to my supervisor.A sample letter offering a job contingent upon the results of a background check or other criteria. I accepted a job offer and am supposed to start there in a week's time. However, my current employer has offered me a promotion and a raise to stay on. Clearly state that you accept the offer. Mention the position and confirm your excitement about joining. Sending out the formal employment offer letter comes next, once you have identified the ideal individual and made a verbal employment offer. In response to your job offer letter, I am delighted to accept the position of Social Media Manager with Fever Dream Cosmetics. Changing the Terms of Employment for an Offer Letter After Acceptance.