Acrudy,
I also am a tight quarters beekeeper. I have close neighborhood houses to the sides, front and even behind me.
1. All my neighbors know I have a hive (There is no way to hide it. I live in a fishbowl.) And I have not had a single complaint.
2. Promise them some honey when it comes in.
3. My bees are foraging several square miles around. I rarely see them in my yard or my neighbor's. There is not enough forage to keep them there. They go for the clover in the empty places or the flowering trees in the yards scattered afar.
4. Make sure they have water. My bees go for the neighborhood drainage pond and ignore the 3 swimming pools close by. (So far...)
5.Two 5 frame deep nucs are the same as a single 10 frame deep, which is more stable with a lower center of gravity. Why do two nucs? You gain nothing and sacrifice stability.
6. I also think that giving them space would be better than cramping them. This is my one fear of keeping bees in suburbia. If I don't give them enough room to expand as a colony, then a swarm from my hive might move into a neighbor's shed or attic. Of course it might be a feral swarm, but as Phillip noted, my hive will still be blamed. So I work this way. I give them plenty of space to be a healthy colony so they won't swarm.
7. Consider HoneyPump's post, which is probably the best idea. Host another beek's hive, which can be removed if needed.
8. OR, just GO FOR IT! Do your own! Even if the neighbors ever do rise up and cause a problem, which is only a faint possiblity, you can always relocate your own hive to a friend's place or give it away.
By the way, welcome to Beemaster. It is a great forum, with some very knowledable beeks.
9. All you Beeks out there with larger properties... enjoy your blessing. The rest of us envy you.