Spacing between your return address and the inside address can vary from 2 to 6 spaces, depending upon how your letter fits on the page. Margins should make your letter look balanced on the page. Your return address and the signature block can be flush with either the left or the right margins. If you line up both address and signature block with the left margin, you'll probably want your paragraphs to be flush left too. This can sometimes help if your letter is running to a second page.
Most prospective employers prefer one-page cover letters.
Flush Right General Cover Letter Tips are also available. This handout was written by Judith Kilborn for the Write Place, St. Cloud State University and may be copied for educational purposes only.