Same questions come up about ER rooms and collage based medical hospitals, its another grey area, just tuck it good!
Jason.
NOT at all!
If you used that theory my PCP's office would be off-limits. He's a cheap SOB, so he brings in medical interns who work a few weeks in a medical office as part of their education to get a certificate from a local technical school (med techs). Every few weeks there are new faces there (that he doesn't have to pay).
We've exhausted this subject extensively before numerous times here.
I challenge you to walk into BU Medical School from BMC!!! I've been there on business (serving legal papers) and escorted by a BU Police Lt. He had to use his all-access cardkey about 8 or 9 times to get me into the building I was headed to. No way in hell you wander in there "accidentally" from the hospital.
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Now to the OP's question:
IANAL but it would be a hard sell to claim an entire building is a "school" due to 3 offices on one out of 15 floors.
BU and NU (in particular) own a lot of real estate in Boston. Some of it is leased out to commercial enterprises that have nothing to do with the school but are a source of income for the college. Again IANAL but think it would be a very hard sell to declare these premises as a "school" wrt forbidden places.
The particular area used by a school for school purposes would indeed be a forbidden place, anywhere else if it were me, I would not concern myself about it. YMMV