I highly recommend the book real estate by the numbers.

And, that people will, over the next 30 years grow very rich with New York real estate, the outliers growing 2-5 orders of magnitude more wealthy than their peers in the Midwest.     

However, have you ever gone downtown to the steps near the capital and witnessed a Trustee sale? 

I would also look at the availability of public water and public sewer, if not at the site how far away are those services.

@Raul Velazquez The 3 things I would recommend besides reading books/audio/sites are:1.

.- verify the policy is current. 2.

The property sat on the market for a month before an offer came in, but the buyer backed out at closing.

We have an LOI accepted on a property where the seller is going to carry roughly half of the 25% down payment.

up to 20% DSCR through lenders I deal with

congrats on the first duplex. easiest will be house hack your next property. you can go higher in units up to 4 but just need to occupy the property. lets connect if you need guidance, i house hacked a few times