We have the opportunity to adopt an 11 yo Aussie having had to put down our 17 yo a few months ago. This dog needing a home is in a good home today and is very well trained. Good social manners, etc. But all the more reason I’m worried. This dog is very attached to her present owner and is not young. What sorts of challenges do you think we should be prepared for if we decide to bring this girl into our home of two adults and two teens? Even if we do everything right is the dog likely to have adjustment issues? I’m hoping for reading/reference suggestions. Thanks very much.