"Lost in Translation. The Advantages of a Bilingual Law Practice" from The Nutmeg Lawyer. I've spent close to half of my life living or working outside the US, so this post resonates particularly well with me. But that's not why I like it so much. I like it because the underlying message isn't that lawyers should speak another language because it makes them smarter or richer, but because it will allow them to help people who might not be able to get good legal advice because they aren't fluent in English.
The bonus? Adrian Baron tells a great story. Read this and I'm sure you'll agree.