Calculating Numbers on a Rental Property

[Blake C.]

Hi guys, I've been trying to learn how to accurately calculate the numbers on a potential rental property.  So far I have a decent idea of each of the expenses but I am stuck on a few.  @Brandon Turner had said in one of his videos that the tax rates for properties can be searched for and found on my county's tax assessor's website but I can't seem to find it, either I am on the wrong site or I am not navigating properly.  I live in Manchester NH (Hillsborough).  Also, how would I go about finding out how much insurance would cost? Thanks