Below is the job title, list of the job duties, maximum physical requirements, and time requirements for this temporary, modified-duty assignment. A sample letter offering a job contingent upon the results of a background check or other criteria.Simply complete the Employment Offer Letter form below and click View Results to see your completed contract. All other agencies must use this form. Completed by: The Agency Accident Investigator. Casual job offer letter template. A conditional offer of employment letter is a formal way of offering a job to a potential candidate provided they meet specific conditions.