The student must be half time or more, in order for room and board to be considered qualified expenses for a 529 plan distribution.
If the student lives at home, you may use the school's Cost of attendance figure for board, for a 529 distribution. You may not claim "room" expense.
You daughter must be officially enrolled as a degree candidate to claim any college expense for a 529 plan. The school should be able to tell you her status. Some schools will not admit students to a degree program if they do not have a high school diploma or equivalent.
