Apostrophes have uses other than to show possession (see Apostrophail!). The other main use is in a contraction to show where letters are missing. In that case, the apostrophe is placed exactly where the letters are removed and no period is used unless the word is at the end of a sentence.
- you’re = you are
- don’t = do not
- he’ll = he will
Do remember to respect a company’s preference when they use an apostrophe in their brand name, i.e., Cap’n Crunch, Dunkin’ Donuts.
There is even a proper format for the apostrophe in a contraction. You should use the single closing quotation mark NOT the single opening quotation mark. When the apostrophe is at the beginning of a word, you will probably get the single opening quotation mark as you type. To remedy that, type both the opening and closing single quotation mark and delete the opening mark. This, of course, isn’t a problem if you use the straight quotation marks, only if you use the curly quotation marks.
Another area of confusion is decades. To correctly type a decade contraction, it is ’80s not 80’s. The apostrophe represents that the “19” is missing from “1980s” and not that the 1980s owned something. Using “80’s” to represent that decade is incorrect.
Remember, however, that in the legal field, contractions are not frequently used. Contractions are used in less formal writing, which doesn’t often happen in a law firm. But if you must use a contraction, please use the apostrophe correctly.