So I am confused. If the Mom DOES live in another city - how did you get the puppy so fast?

Call the Humane Society or Animal Control in that city, and report the mother for abuse and neglect. She is endangering the mother dog's health, and has already caused the death of nearly a whole litter of puppies.

YOu can also get a letter from the vet that stitched up the one remaining puppy.

DO IT! And let them handle it. They may seize the dog - at least she will be spayed and hopefully rehomed.

That woman does not deserve that dog. And I hope she does not have the nerve to say she loves it.

Her lack of action and responsibility is anything BUT loving!