Has she been spayed recently? When we adopted Dixie in December we got her the day after she was spayed (She was 9 weeks then) and she kept peeing in the house but now she is fine. She has a accident here and there but she's a puppy. Maybe have them take her to the vet to rule out a urinary tract infection. She could be marking in the house too but I would definately have them consider taking her to the vet.

Sometimes if dogs pee a lot like that, they are either marking or have a urinary tract infection. Plus she maybe isn't quite on their routine yet so she may have accidents. She could be peeing in the house also to prove dominance over their other dog. You never know.