Relocation of new house, 6 keys, leaving 2 houses, how to protect rights?

Some security doors have decorative keys and positive keys. When the owner is decorating, the property management company usually only gives the key to the decoration, for fear that others will take it away when the house is decorated. When the decoration is finished, twist the front door key on the door, and the decoration key will be useless. Maybe the property management company stayed for you for fear that you might make a mistake. But you can make it clear to the property, just keep it with the master key. I don't know if this is the case. . .