Susan Berkley is up that way (NJ I think)- website at:
Voice Over Training and Instruction | Web Based Classes and Training
I haven't taken any coaching from her, but she seems respected and pretty popular.
I know she has boot camps and other classes...
There's also the voiceover resource guide that may have some more coaches at:
Voice Over Resource Guide
Hope this helps,
Joe J Thomas
www.JoeActor.com