CAL-I just received a C&D letter from an attorney threatening to sue us if we don't change our name within 7 days. Apparently there is another company, which does a similar business, name very closely to ours. The problem I think we have, is that I know the two owners of the other company, from about 13 years ago, but at that time their name was a different company. I didn't even think about them until now. We have already incorporated in CA about 3 years ago and changing would be very difficult, however, due to the current economy, hiring an attorney isn't so easy either. I plan to contact them directly to discuss options, but wasn't even sure if that's a good idea without counsel.What is the name of your state (only U.S. law)?