Employment Offer Letter Instructions. These are called the 'terms' of the contract and are legally enforceable.In the formal offer letter, provide comprehensive details about the position, compensation, benefits, and other pertinent terms. The conditional offer is subject to the following terms and conditions: Satisfactory clearance of a criminal history and background check. The Pennsylvania Supreme Court recently ruled that an initial offer letter to an employee was not a binding agreement. An offer letter is not an enforceable contract. So even if it was listed in the offer letter, it's not binding. Clearly stating in the offer letter that the offer is for atwill employment. Both the offer letter and employment agreement serve the same basic purpose – to memorialize in writing the terms and conditions of employment.