It never even crossed my mind to offer to keep them all while they are gone. That's a big responsibility, but I think I could manage! There are 5 puppies. Even if they hand over other puppies before they leave (I am going to truly encourage that NOT to happen), I would still be willing to keep mom and how ever many puppies are not at their new homes.
We have no other animals or pets in the house, but I do have 3 children (11,12,13). I don't think there would be any issues with the kids, in fact, I think it could be good for them to see how tiny and "needy" these babies are!
I guess from a legal standpoint I would need to figure out a way to safeguard myself/family if something were to happen that was completely out of our control.
I will call tomorrow to ask about this option. She's not a breeder, and truly I think she's just uneducated about how important it is that they stay with mom longer than a larger breed. I know I was before we decided to add to our family!