For me, it has to be a data-driven decision: what is your current NOI, what would be if you replaced the boiler, how much will it cost, and how long will it take to get your money back...If the area and marketing don't warrant central air, I would NOT do conensors right away and just focus on the forced air.

So I've been wanting too go out a network with investors and loaners/lenders but I don't know if their is any events that is real estate and commercial real estate investing based events in DC, does anyone know any events in the DMV that is good too join?

I know some solid knoxville mortgage brokers who'd be worth asking & would be happy to connect you.

I have worked may investors how like the idea of a duplex in a good growing market. 

What is the process like for that, and how long does it usually take? 

How soon do you want that capital?

How did you handle tax prep when you first started investing, especially with a plan to scale over time?

Let me know if you need any help on the construction side of things.

How can I put them all into one portfolio and just keep adding to them as we obtain more? 

That comes with the hurdle of how do you get a US bank account.