10 Red Flags When Choosing an Agent in Real Estate Warning Signs that a Real Estate Agent is a Bad One Lack of Communication 1. Lack of communication: A bad real estate agent will not keep you informed about the progress of your sale or purchase. They may not answer your calls or emails quickly, leaving you frustrated. 2. Failure to listen. Good communication requires active listening. However, a bad agent might not take the time necessary to truly understand you and your preferences. They may try to sell you properties that are not what you want, wasting time and