All I am saying is that from a legal point of view, nothing can be done.

The only thing it seems like is they don't have AS much time for her as you would like to see. Have you talked with them, offered to maybe walk her for them a few times a day while they are at work? I agree if you don't have time for a dog, definitely do not get a puppy, but from what you described she does not seem abused, maybe a LITTLE neglected, but the family does still pay SOME attention to her, correct? That is what you said, anyway.

In any case, maybe talk with the family, offer to walk her for them. That will also get her some exercise she needs.

I don't think they realize it, I do think the family loves the dog and is caring for her, but maybe dont' realize just how MUCH attention she really needs.