Cancel Lease w/ Tenant Asking for Radon Test Before Move-In?

[Art Maydan]

Had a tenant sign the lease and send the move-in fee and 1st month's rent then start asking a bunch of super high-maintenance questions. My favorite is, "Do you have a radon test for me? No worries if not. I can get my own." So he intends to move in, run a $15 Home Depot radon test, and move out if he gets a false positive or reads the test wrong or whatever. Regardless, it speaks to him being a high maintenance person I don't want to rent to. I cancelled a lease once before move-in when it became clear the lady was going to AirBnB it. Just sent her back her money with an email saying her lease is cancelled due to an obvious impending lease violation she revealed in her communication. What's the legality of doing the same here?

[James Hamling]

Hey @Art Maydan here's a "crazy" idea.... How about, IDK, talking to the tenant? Saying "Hey, curious, why all this after the fact of being set in lease?". 

I don't comprehend all this. Go online, vent vent vent, freak out, assume assume assume.... All this time and energy spent vs picking up the phone, calling tenant and saying "Oh hey, curious where all this is coming from, kinda caught me by surprise".     

May be shocked to find out how simple and NOT an issue the answer is, like IDK, tenant's parent/friend really grilled em that they gotta have this done. 

And if ya got radon, you got radon, why the obsession with not knowing? It's really not that big a deal to deal with and once done, it's a feature.