Trainer Needed For 1 Dog In Brooklyn

Sadie is about 5 years, adopted and a half lab/half great pyrenese. She is very well mannered towards humans. Since moving to NYC, she's been afraid of the street and shows a lot of resource guarding. There have been lots of moments where she gets into fights with other dogs in the building and at the park. We want her to play with other dogs, run around and come back to us when called. We think she's anxious, and could benefit from being trained/socialized well.