Locked creation new characters on my world ?

[SrahaTia]

Usually, it's possible to create a new character on a locked server when there are less players online, like right after a maintenance (that's how my sister got on my server, which was locked at the time). If that's not an option, there's the world transfer service, which would allow him to move his character to your server, though it does cost money to use and has other restrictions.

Here's a link to some details on world transfers, if you want it: http://na.finalfantasyxiv.com/lodestone/playguide/option_service/world_transfer_service/