1-The earliest coop would be second semester of sophomore year starting in January for half the students. The other half would start coop July after sophomore year.
2-If a student chooses to do 2 coops most programs can be completed in 4 years. Here are some patterns of coop under “Sample Patterns of Attendance”.
https://www.khoury.northeastern.edu/current-students/undergraduate/undergraduate-co-op/
This can vary depending on major. ***
3-About half the coop jobs are in the Boston area. If your student gets a job in the Boston area she can continue to live on campus. She can choose to live off campus of course.
4-While on coop there is no payment to Northeastern for tuition or fees. If she chooses to live on campus while on coop she would pay the regular room and board charges.
***Just realized those patterns are for Khoury CS but it is similar for other programs.