Checking Mezuzot of a School

I remember seeing somewhere a machloket poskim as to whether mezuzot of a school should be checked twice a shmita like private homes or twice a yovel like public city gates and buildings etc.

I don't remember where or the maskana but I think those in favour of twice a shmita were arguing that if the school has a board that runs it specifically and is responsible for it then its considered a reshut hayachid (for this purpose).

Does anyone have any sources or know what is noheg lema'ase?