Some might not be livable at purchase but 5k still seems cheap unless there is something off with the data. maybe the prices were reduced on unlivable properties due to back taxes being part of the deal for the purchase.

The homeowner has direct title, can sell at any time and gets 100% of the appreciation and tax benefits on these houses.

What tips do you have for someone just getting started?

That will show what proposed tax increase you will see.

I'm happy to share tips, etc, if you want to connect. 

He isn't a motivated seller.If it will rent for $1900  a month, that means to make money you have to have a payment that includes, principal, interest, prop taxes, insurance, at less than $1400 a month. $190,000 at 3% interest is P&I $801 + prop tax plus insurance a month.

NC is a great market for your goals, however it will be challenging to find inventory that has much cash flow; many people who toss money into multifamily here do it to avoid the tax bill + take the 10 year runway of growth.How much SHF RE do you currently have?

Again, consult your tax accountant. 

@tom shallcross summarized this well in another post and just inflate your numbers up for a $665k purchase price and $2300/mo per unit for rent.Borrow 80% which is like $3700/mo for Principal, Interest, Taxes, and Insurance.

Any tips or advice?