For pet-Friendly Accommodations for Los Angeles, try looking at Bring Fido.com. (Please check pet policy before booking.)
In addition the AKC provides a list of dog-friendly hotel chains. Click here.
Metropolitan Animal Hospital6565 Santa Monica Blvd.Los Angeles, CA 90038855-350-7387
4641 Colorado Blvd.Los Angeles, CA, 90039818-244-7977
(Animo Ellen Ochoa Charter Middle School)
Los Angeles, CA Wikipedia Article(Boyle Heights)