Cash out Refi property located in Northern NJ, and hypothetical purchase mixed use or multi family apartment building located in Brooklyn most likely

Hey everyone, I live in Brooklyn, NY and I am looking to house hack.

I'm an investor living in Brooklyn. 

Hi masters,I have a question about the county mortgage tax when purchasing a property.I'm quoting a mortgage from 3 lenders for a small multi-family in Bushwick/Ridgewood area (Brooklyn NY), and one of them estimated the county mortgage tax in their quote when the other 2 didn't.If anyone has some knowledges to share with this, I would appreciate it.

I have done business in Queens, Brooklyn, Hudson and Bergen County, with Hudson County as my main area of business.

Here are pockets I focus on for cash flow:West side - West boulevard, Cudell, Clark-Fulton, Jefferson, Bellaire-Puritas, Old BrooklynEast side - Fairfax, Buckeye-Shaker (the north side), Waterloo Arts District, Garfield Heights, Maple Heights, Newburgh Heights, Lee-Miles (the north side), BedfordHere are the areas that I focus on for appreciation:West side - Lakewood, Edgewater, Old Brooklyn, Ohio City, Tremont (above 490)East side - Buckeye-Shaker (the north side), Waterloo Arts District, Fairfax*I have a graded neighborhood map of these areas as well if you would like to check it out. 

Cash out Refi property located in Northern NJ, and hypothetical purchase mixed use or multi family apartment building located in Brooklyn most likely

Honestly, growing up in Brooklyn I was not sure if I wanted to know.

I am a newbie investor (own 1 AirBnB rental for last 3 years)... and am about to close on a 2-family home in Brooklyn NY.

We recently put our Brooklyn condo for sale and we were so lucky to have it selected as the Deal of the Week by StreetEasy this week!