In my opinion, to truly learn about an area, you should use someone who specializes in that area. Most Bergen County agents and not well versed in Essex County homes, and visa versa.
Tim may have found the 1 agent who could handle both, but that's not usual.
My philosophy has always been to make sure my client is well served....if I don't sell or list in an area on a regular basis, I'd rather refer my client to someone who does.
There can be some overlapping, but both counties offer a wide variety of homes and towns and price ranges.
If you are looking for specific information on schools, commuting, houses of worship, day care. etc,... a local agent is the best source for that.
I would suggest that you select someone in each county. I highly doubt that anyone who knows Livingston or Short Hills, for example, would be as well versed in Ft Lee, Alpine or Franklin Lakes - just 3 of many Bergen County towns.
My specialty is Essex County - I have lived and worked here my whole life.
Please feel free to visit my website for more information on me.
If you'd like to reach out to me, I'd be delighted to help.
Good luck to you......
Prudential NJ Properties