A system and method of notifying a homeowner of a more precise timeframe for real estate showings, service visits, or deliveries to a home or office. The system employs a pre-established list which includes all of the locations that must be visited in a day. Instead of providing the homeowner with a multi-hour window of when their residence may be visited, the system will provide the homeowner with updates based upon the GPS location and a location servicing program of the real estate agent, service worker, or delivery person. The system determines which addresses have been visited based upon the GPS coordinates of the agent' s mobile computing device and proximity settings which in turn provides this information to homeowners.