The Secret of Client Development?

The secret of client development really isn't a secret. It's straight-up, hard-working, honest to goodness client service. Service that would make your mother proud, that makes your best clients pick up the phone to tell their friends about they great lawyer they've hired.

That's why you need to read Dan Hull's "world-famous and annoying but highly correct, inspirational and soulful" 12 Rules of Client Service:

The client is the main event.