1 is a bit surprising. It’s not like housing around airports are particularly popular for noise reasons. Here in Seattle, if you don’t count float planes, we don’t even have general aviation airports to worry about until you hit Boeing field to the south and Paine field in the north (again Boeing related).
Most new town homes have rooftop decks (because Seattle doesn’t get much snow), why can’t they land on those?
Renton Airport, Boeing Field, Seatac, Paine Field Harvey Field, Arlington Field, plus scores of smaller poorly marked airstrips if you check OpenStreetMap. It turns out very few places in the US are sufficiently far away from an "airport" to allow drones to operate. Even out in the boonies.
There is literally nothing in Seattle between Paine field and Boeing field in the main I5 corridor if you don’t count sea planes (all the airport symbols along the lake are float planes, Boeing field, SeaTac, and Renton are all basically right next to each other). It is a pretty air strip dead zone, you had to go all the way out to Arlington to mention another one (they have a nice playground next to it that the kid likes to watch planes from)! And ya, the boonies have landing strips everywhere (like the one out near Snohomish used for sky diving).
You're clear with no restrictions from about Downtown to North Lynnwood. Even then, as you approach Paine and SeaTac, you can fly with altitude restrictions (300, 200ft, etc). On the eastside along 405, permissible areas are even greater.
Most new town homes have rooftop decks (because Seattle doesn’t get much snow), why can’t they land on those?