Here in NJ we have a 'mixed bag' of AHJ's. Some are twp employees (Harold and I), others are from various 3rd party agencies (Garden State, BUI, Code 3(??), etc).
IMHO, as an EC, the 3rd party AHJ's are the hardest to get in touch with, and the toughest to narrow down to a ballpark time.
BTW, I for one, don't "know anyone" within the Twp that I'm employed in. AHJ's here are State Licensed, requiring experiece within the respective field, and testing to obtain the license. I recently applied for a PA AHJ Lic., thru reciprocation, and it was issued; based on experience and NJ Licenses held.