Add some bark or rock around the bush and to the crappy lawn, or bring in sod.

One was barking at one, the other two were minding their own business and the GSD came at us and attacked and we weren't on their property, etc.We also had a sweet female black lab that out of the blue attacked my ex's friend and bit his hand.So, you just never know.

Don't gossip, don't get overly involved, keep it objective.Similar to what Sue said, they could be all bark and no follow-through.  

Your typical big dog is going to bark less and pee on the furniture less but that's more personal observation than fact. 

Now the PM knows you're all bark and no bite.  

But by barking, cajoling, and frightening unknowledgeable landlords, as they are currently doing here, they are largely solving their problem without doing any actual work. 

If a dog barks while the owner is away at a single family its typically not a big deal. 

If it's still a go, then get ready to field all of the barking dog complaints and summonses.   

It's pretty difficult to hide an animal that makes an atrocious mess, barks incessently, etc.

The apartment doesn't really need much, they have a rottweiler also, dog hasn't done any damage but it barks like crazy all the time when it sees someone outside.