Did he move his plane to LGA, that's the only airport in NY that I can remember with any noise abatement program. Part 125 says you have have to have 8 hours rest in 24. So a 16 hour duty day with say 14 hours flying, 8 hours off, 16 hours duty with another 14 hours flying is legal. You could do that until the crew drops dead. Their main protection is the owner isn't going to want to spend their life in a plane. But since you're not going to buy a ticket on that plane the FAA doesn't care.