10 Red Flags To Watch Out For When Choosing A Real Estate Agent Warning Signs of an Unreliable Real Estate Agent Lack of Communication 1. Lack of communication: A bad agent will not keep in touch with you about the progress of the 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 might try to push properties on you which don’t fit your criteria, wasting both time