A sample letter offering a job contingent upon the results of a background check or other criteria. Fill in this template with the appropriate information for the proposed new employee and quickly craft an effective conditional offer of employment.Learn what a conditional job offer is, including how to respond to one, with our stepbystep guide on conditional job offers. Customer: Who should sign an offer letter first? The employer or employee? Employment Offer Letter Instructions. Yes it's entirely legal. The first thing you should put on your job acceptance letter is the date. Include it underneath the header close to the top of your letter. Are your skills in demand and do you have other employment offers that you are negotiating or pursuing?