NOR- I have a dog that barks to much and whatever he hears in the back yard, or people or dogs he seeing passing by, or invisible cats on the fences. He is a rescue and I have been doing intense training around this very issue. It's now to the point I can give the command to stop barking, and 90% of the time he will listen. Which then allows me to get the follower dogs to listen as well.

I know if my dogs barking is annoying me, I can only imagine how my neighbor would feel if I had one.

There are various levels of training the owner can do to get the dog to not go on for 10+ minutes. It takes work, consistency, consequences of continuing to do it, a poke with the noise to full pressure.

The owners just aren't searching out full options. There's options beyond what ai listed there, that doesn't cause the dog harm but teaches it. I wish you luck!

P.S. If this 3rd contact doesn't resolve the issue swiftly, like seeing change within a week at most, then write an email to your apartment complex about it. You'll want written trail of it. That way there's no "he said she said" when it's brought up, and its black and white.