Can two lady staffs be raised together

My son lives in an ajoining property to me and owns a 12 year old dog and a 1 year old bitch.
I have become so attached to the new puppy I would really like a bitch of my own. We have always had staffs and I'm worried about introducing a new girl to our family. I have been told having 2 girls together could be problematic.
Our older dog has had his bits off so there is no problem there and gets on well with the puppy.
It's 2 separate houses we live in so they can be separated but at the moment the puppy is my shadow and I would hate to upset her.
Could someone advise me please