What approvals do I need for a helicopter landing?
If you charter a helo, most likely they’ll fly you from KALB to KBVY, then provide you additional ground transportation to and from these airports.  As to landing directly onto school property, that would probably be at the discretion of the school itself; my guess is that they would frown on it unless it was an emergency, as helicopters are a noisy and somewhat dangerous nuisance to have around.