Employment Offer Letter Instructions. Include a space where the potential employee can sign and date the letter to signify their acceptance.Courtesy dictates that you acknowledge a written job offer, even if you are not ready to accept or decline it. Take note of the details of the offer. Here are the essential steps involved in writing a good job offer acceptance letter: Review your job offer. Add date at the top. And if they refuse at first, they will often accept if you offer to pay the first few months of rent in advance. Offer letters aren't considered legal documents because these documents just propose a position to potential candidates. Explain that you accepted a job offer, that the acceptance was in writing, and say who sent you the offer. The short answer is yes, you can decline the offer.