Home automation won't help in this case, though I suspect there will be some level of falsified leases. It seems that if it's a privately owned residence, it falls into one of two categories: Principal residence or not principal residence. If it's a principal residence, there are likely other documents that would also utilize that address (voter registration, healthcare, drivers license, taxes, insurance). If it's not a principal residence, is it leased out for at least 6 months a year on leases of at least 30 days? If yes you're fine, if no you're fined.
There may be some question with privacy (e.g. proof of leases/lessee), corporate-owned residences, etc. but I'm sure they've factored that into things. The big deterrent to lying about it is probably the magnitude of the penalty for doing that - it's kind of like Martha Stewart: she didn't do time for insider trading, she did time for lying to the FBI (about insider trading).
There may be some question with privacy (e.g. proof of leases/lessee), corporate-owned residences, etc. but I'm sure they've factored that into things. The big deterrent to lying about it is probably the magnitude of the penalty for doing that - it's kind of like Martha Stewart: she didn't do time for insider trading, she did time for lying to the FBI (about insider trading).