If the landlord is accepting govt money, he has to conform to govt regs.
They cannot be more restrictive than the regs provided by the govt entity that they are receiving money from.
So, you have to get a copy of the housing regulations from the agency that assists you with rent.
If the agency has no regulations against vaping, then the landlord cannot restrict it.
The reality, however, is different. Landlords can, and will, put restrictive leases out there, and if you have signed the lease, you will have to hire a lawyer and go to civil court.
If you dont, you will have to abide by the contract that you signed, regardless of right or wrong.
Amraann
You cannot smoke in public govt places. Apartments are not public.
Also, the argument that vaping is not a tobacco product doesnt usually hold up, if the nicotine is derived from tobacco.
Redacted
I was speaking strictly about Florida. Here it is all government owned buildings. Public or private no smoking.