Changing Locks?

Changing the locks is a common practice in the long-term rental market. However, in the corporate housing market, where rental turnover is quick, it is not very cost-effective to change out the door locks regularly. Recently, a landlord told me that she rekeys her own locks. The method is very simple and there are do-it-yourself kits at hardware stores starting as low as $10. Another landlord told me she had a dead-bolt built on the interior side of the door. She simply advises each new tenant to use the deadbolt when they are home as a surefire-method to prevent any unwanted...