No she’s not. The reason I say this so confidently is that it’s taking years to get on these last few years, she’s so young, they haven’t been there that long (cause he gets transferred) and she is getting BHA (Basic Housing Allowance)
from the military. It would cover some rent, most of it.
The problem....I'm absolutely certain that this has happened hundreds of times in the past.
The 7 days is an arbitrary number. They don't want a second party WITH AN INCOME LIVING THERE.
I'll bet there's also a notification clause in her lease to cover the over 7 days.