Avoid All-Caps

Never set headlines using capital initials and lowercase on every word—unless your intention is to create visual hiccups. This is a bad and outmoded convention left over from nineteenth-century newspapering days . . . . [S]uch heads are extremely difficult to read and there is no longer any functional reason . . . to continue using them. . . . Use all-capital setting only when the lines are very short. . . . In bulk, [all caps] are hard to read . . . .”
— Jan V. White, Editing by Design 91 (2d ed. 1982)

All caps-uniform in size and letters-are typographical boxcars that are hard to read. It is a wonder that lawyers use them at all. But use them they do. All the time.

Take a look at the example below. This is a screenshot from a recent appeal. 

Hard to read, isn't it? Compare it to this example. 

The second example is so unadorned that lawyers think they need to spruce it up with caps or italics or underlining or whatnot. But they shouldn't. The simple typographical structure allows the reader to focus on the content of the brief. Which should be the aim of any writing, legal or otherwise.