They are like furniture items, you can place them into any residence you own in the major cities (Velia, Heidel, Calpheon, Altinova, and Valencia City only) and can be used by all the characters in your family.There are a couple of important things to note about the maids This will open up the regular storage or marketplace interface. Once their cooldown ends, they will be in standby and you can click on either the storage or the marketplace button depending on which maid you purchased. As you can see on the screenshot, both maids are still on cooldown. This interface shows you their residence and the cooldown left before you can use them. Once you put down a maid, you will see the new maid interface to the left of your screen.