If the employee is in the UAE, he must sign the offer letter before the employer can seek MoHRE's preliminary approval for his employment. Take note of the details of the offer, as specified in your offer letter, and respond appropriately.Employment Offer Letter Instructions. Writing an employment offer letter isn't easy; you must create a compelling agreement that favors both the candidate and your company. Follow these step-by-step instructions to create job-offer letters that reduce legal risks. Links to sample letters are included. You mean what are the things you should ask for from a job in Dubai. The job offer letter should be a result of an interview with some negotiations. In Virginia, offer letters are usually enough. Usually after the offer letter acknolwedge HR should get in touch with you for the Passport copy for the Visa processing.