I saw the building has tenant and even upstairs which is direct to roof this one I got in first floor.

The building itself cannot be accelerated. 

Consider an accessory dwelling unit (ADU): If your property allows for it, building an ADU (like a small apartment or guest house) can provide a separate rental unit while you live in the main house.2.

The reason people hesitate to pursue ground-up construction here is because it's costly, unless you're building a two-family home where you can live in one unit and rent out the other.

I’d recommend continuing to build equity in your home for the next year or two.

A developer had already worked out deals with the owners of the other 5 buildings and finally got the 6th and final building under contract. 

That way, you build equity and cash flow at the same time.Feel free to reach out if you want to run any numbers or talk through a deal.

My ultimate goal is to build a portfolio of cash-flowing properties to achieve financial freedom.I’m currently seeking mentors who can guide me through this journey and help me avoid common pitfalls.

Here you go -https://www.albanycountyny.gov/government/county-clerk/servi... 

https://www.parealtors.org/blog/pennsylvania-population-chan...Pennsylvania is the fifth largest state after California, New York, Texas and Florida.  Pennsylvania is alos one of eight states with declining population...