BU Masters and "Active Borrowing" Loans?

[staxdo_21]

I was accepted into an MA program at BU and was in touch with the financial aid department in the hopes of learning  more about whatever loans I might qualify for. However, they explained they utilize an "active borrowing" model, meaning I will only find out what federal loans I qualify for after I enroll in classes, which I cannot do until closer to the start of the semester. I've never heard of this before and it makes me nervous. The last thing I want to do is take out private loans. Are there any BU Master's students who have navigated this? BU is so pricey that I can only go if my scholarship goes through anyway and now I feel even more unsure about committing to the program.