Aggression: What kind of training works best?

Here's my situation. My 1 year old Jack Russellused to live in Virginia with myself and my ex. We had an acre of land and a large house. I now live in NY with just me and my dog, Merlin in a one bedroom apartment with 3/4 of an acre. When i lived in VA, we brought Merlin for puppy training, and basic training. So with treat in hand, he can now sit, down, stay and leave. That's only with treat in hand. Merlin likes to take things (lipsticks, underwear, cigarettes, anything he could get his mouth on). In VA when my ex would deal with him, Merlin would drop what he took and roll on his back. For me, he would growl. Now that i have him by myself, the growling is getting worse and now today he bit me. I called numerous training places to try and train Merlin and myself, but they all seem to have different views. What is the best route of training for Jack Russells? I am starting to debate wheter or not to find
someone who can handle him better than myself, because some of these training routes are over $1000. I really don't want tot get rid of my dog, but am in dire need of some advice.
Thank you,
Josette

• Re: Aggression: What kind of training works best? Aug 28 (0)