Is someone going to be available during the day so that she can be kept on frequent feedings and watched for hypoglycemia? I am a little concerned this person is not keeping them at least until 8 to 10 weeks (really it should be at least 12). They are not even on kibble yet. I'm sure since you have fostered before you are also concerned about all of this. I love mastiffs; have a friend w a beautiful girl, but I have to admit I am also concerned about such large dogs w such a tiny pup. Unintentional accidents can happen to the best of ppl. Hate to sound like a mother hen, but I hope you are there during the day providing 24 hour supervision. Sounds like you will have your hands full for Christmas this year.