Form required of new employees to verify identity and employment eligibility can be filled out online and saved or printed. Mention following things in your mail: Sample Reply: Thank you so much for offering me the job.This may involve negotiating the terms of the offer, signing an official offer, and sending a formal acceptance letter via email. So about a week or two ago I posted here asking what happens if you turn down a job offer and how unemployment would find out. Massachusetts does not require employment offers to be in writing, but many employers do make written employment offers. Are the terms of an offer letter enforceable? Filling in the Job Application Summary. Offer letters are not required in Massachusetts, but many employers like to make a formal offer of employment through an offer letter. Review the job title, work hours, workstation, salary, and employee benefits. Request clarifications.