Whenever possible, italicize novel titles. Otherwise, underline them.
no
yes
no
No, quotes are for quoted material only.
No, we do not put the title in quotations.
yes if it is from someone elses work
No, you underline Novels and books
Yes, you would put "Mayflower" in quotations because it is an actual name of a boat.
no not usually
No.
Put a quotation mark at the beginning of the quote and at the end of the quote. You do not need to put quotation marks around each sentence within that quote.
Direct quotations are handled the same way in a business document as they are in other documents. You put quotations around a direct quotation just like in any other document.