[Lizzy]

Hi, my female shepherd has issues with big dogs to, she loves people and children and you can't fault her until she gets outside the yard she is 3yrs old and gets very exited and cannot be controlled when she sees another dog. She is very dominant, pulls on the lead and will lunge if she is in a sit stay position, what do we about it? She was very well socialized and was trained by a professional and now she can't be trusted outside the yard. help please.