Q: Dear Ethics Lawyer, Another lawyer from our firm and I made a pitch to represent company A, which our firm had not previously represented, in a new matter. We discussed with A the strategy that we would employ if hired, based on the facts from their perspective that they provided to us at the time. Unfortunately, we did not get the work. Six months later, I have been asked to take on a different matter for an existing client B who is now adverse to A, one that is not the same or substantially related to the matter that we discussed with A. May the firm or I take the new matter? Do we need any kind of a waiver to do so?