But highschool is pretty much a necessity to finish.  

You can ask for documentation of proof of necessity of a service animal if the disability is not apparent or known to the landlord - i.e., you can't ask someone who's blind for documentation that they need a seeing-eye dog, but you can ask for proof for someone who claims the need based on something not obvious - epileptic seizure, for example. 

You'll quickly realize calling the potential tenant's hr dept is a necessity.  

I want to get it to the place where if I want to be involved or if I want to grow the portfolio then I can get involved rather than being involved by necessity.   

I contacted the local police department who stated that AC was a luxury and not a necessity.  

Is it after a certain timeframe or do you outline it as a necessity when the time comes in cases such as we are in?