Grad School for Computer Science - What Undergrad College is Good Enough?

I think this is what he’d be interested in. I just wonder how financial aid would work. (He has a full ride at Richmond.) Would he have to work out the cost with Columbia for year 4 and year 5? Or would year 4 still be covered by Richmond? One year at Columbia might be do-able, two years at Columbia would be a challenge, I’d have to figure something out ahead of time!