Edit: we can still file FAFSA and need access if the taxes or not officially filed yet no?
On a related note: when do we get the $ we are withdrawing for our loans? Only on the first day of school like in undergrad?
Yup, just select the "intend to file" option and then estimate off your W-2. You can go back after you file and adjust FAFSA if you want, though it probably won't change anything.
I believe you should get your loans a couple weeks before school starts (before 1st semester tuition is due, whenever that may be) but my memory is a little fuzzy. It's been like 7 years since the last time I did this... In any event, you'll find out for sure when you sign for them, which should give you plenty of time to plan.