3 Business letters
2-inch top margin or key dateline 2 lines below letterhead
2 – 10 lines between dateline and inside address
1 blank line (double space)
1 blank line (double space)
Single-space para-graphs; leave 1 blank line (double space) between paragraphs
1 blank line (double space)
1 blank line (double space)
Hit ENTER four times after complimentary close to allow space for signature