How To Write A Letter Addressed To 4 People . Tips for writing a casual leave letter. In cases, where no information is available about the recipient, make use of the salutations sir or ma’am. Letter Template Download Printable PDF Templateroller from www.templateroller.com Write the number of the street address first, followed by the street name. Additionally, if you want to add a personal touch, address your cover letter to your prospective department or manager. This may include receipts, warranties, cheques, pictures, videos if there are any.