That made me wonder too why that toy female has not been housebroken? And you might be right that if she is not housetrained, than she might as well not be properly socialized either.Ugh! What kind of person breeds a bitch (I'm guessing for years) but doesn't go to the trouble to housebreak her? On top of this, I'm guessing that this bitch has not had any other training or proper socialization.
You could take her on, but training her could be a real challenge. Aren't you currently trying to house break a 7 mth old?