From Philly Law Blog: "How to Defend a Deposition – Don’t Just Show Up and Play Lawyer"--
First, and most importantly, your major role is preparing your witness. 99% of defending a deposition properly is the preparation. If you prepare your witness properly, you should be able to just be a potted plant . . . . So how do you do that?
This quote is from the middle of the post, which includes a lot of basic information about defending depositions, including some advice for preparing a client for a deposition.
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