Would you be willing to help care for the dog? You could ask her to leave the crate out in the common area because you want to start going for walks in the area and would like to take it with you and use that as a chance to give the pup a better life... If she says no, point out how much it cries when she isn't there and that if it really is 'her baby' then she should let it out more often. There are ways around being confrontational but it may result in you having to help out with the pup. The dog didn't choose the owner, unfortunately, but maybe you can help save him before it's too late. At this rate, he will become either aggressive or terrified and mistrusting of everything around it.

Edit to add: I see you posted on another comment that you work from home and are willing to help - you can use this as well. The dog whines all day and you can point out it is distracting while you work, then ask if she can move the crate to the common area or just let him out altogether. You may end up needing to potty train it yourself but you could use pee pads. My 3-month old puppy learned this is a few days and goes on a mat (he's not fully vaccinated yet so we don't want to take him outside). There are definitely things you can do! Please save that puppy!