Particularly for rented apartments, key control by apartment management is an important issue. Large jury awards have been made to victims of crimes in apartments because of negligent key control and use of a master key. A resident gives up some rights when they move into a multi-residential property. In most cases, the resident, per written agreement, cannot add or replace the lock on their door unless management is given an extra key. By doing this, the management assumes the responsibility of and legal liability for key control. Key control requires restriction and documentation of those who use back-up and master keys. The following measures help provide for.