Anonymous wrote:If you need the money, then absolutely ask. If you don't, then I wouldn't. I'd absolutely discuss ground rules before she moves in--expectations of food provision (who cooks? Who grocery shops?), cleaning up after oneself (who does dishes? Who vacuums?) basically like new roommmates would.
My guess is a college kid on an internship in a new city will be exploring and going out with new colleagues and friends, so you may not see her as much as you think.
I think this is a great conversation to have with both her and her parents. One thing to be clear about is that you welcome the time together but understand that your life may be different than theirs -- e.g., you probably spend a lot less on food than they do, keep the place at 68F/58F day and night in winter, and are a bit of a neat freak, so that is something for her to know walking into the situation. It's a conversation. You can talk together about ways to make it succeed.
I'd also say it's okay to ask (gently) about what the back-up plan is, if it doesn't work out, but that definitely requires tact and timing. To be clear, if it were two weeks, I wouldn't bring this up, but for two months, it's reasonable to consider.