Then you have a few areas along MLK, but its pockets.Then you have the Oakland Citys, the Pittsburghs, and some pockets along Campbellton Road, but those homes are on their way to being worth $250k+So I agree, not many D or F neighborhoods in the city anymore, and your C's are the outskirts.

Lower priced houses you are probably looking at D or C class houses at best, and just like anywhere else it comes with that class of tenants and problems.  

Sheriffs sale, courthouse, depending on state), then you need to determine if there are any liens that survive the sale, such as DOR state liens, IRS liens, tax liens, etc. 

That is a very well known peculiarity of NH law and the DOR that any local attorney should know.    

Most of the lenders who aren't average joe type of hard money lenders and are organized as Reg D or A funds with SEC exemptions wont lend to individuals anyway so you need to be an LLC or Corporation.

If it goes to the auction DoR lien will be wiped out.Does anybody have a strategy for negotiation with the Department of Revenue or buying their lien at deep discount?

I do not suggest bad neighborhoods (C-, D or Fs).

(you stated you "plan" on having them rented....so I'm assuming they aren't rented yet)Layer 3 - are you currently W2'd or were you only W2'd in the past?

Some areas are street by street so one street could be a C, take a wrong turn and you'll end up on a D or F. 

Have your credit card/debit card ready to pay the fee, and start on their website:https://www.njportal.com/DOR/BusinessFormation/CompanyInformation/BusinessName