But what about when the project is done - especially in the case of spec or model homes? You'll have agents and other sales people or representatives there, often alone. NAHB reported on a woman today, who is one of those people. A couple stopped by her sales office and asked her to take them on a tour of one of the homes. Something felt "wrong" to her, so she declined. Later, that same couple ended up carjacking another sales agent in another neighborhood. The woman, Lynn Parker Davis, knew something had to be done. So she invented a new device, called NterNow.

The device is a secure, keyless entry system that allows buyers to call in or use a mobile app to gain access to homes within a community. NterNow is a patented 12-button lock installed on the front door of a builder’s spec homes. Prospective buyers interested in touring a home can call in to a third-party verification system using a number provided on the lock, or log in with the product’s mobile app to provide verifiable identifying information and the property address.