Or how would you use the tool to calculate the ROI as it has not been rented out since the initial purchase date?

We couldn't see any of this initially because there's cinderblocks covered by siding around the perimeter of the house.Note: the county classifies the house as "Single family detached". 

We are planning on using our VA loans to buy duplexes as our initial investment.

Is the process for applying for refinancing different from applying for a mortgage to initially buy a property?

I initially looked at this deal in late January 2020 and had it under contract prior to the pandemic.

From my understanding ROI is initial investment/net income x 100. 

I'm impressed by your initiative and drive.

Also understand that those proposing these measures have clearly indicated that these initiatives represent merely a first step in their long-term plans to effect the single largest wealth grab in the state's history.

Now that I've been looking through BP, listening to the podcasts, and reading some other books like "Richest Man in Babylon" and "Rich Dad, Poor Dad", I have some initial goals for my real estate investing.(1) I want to buy a home for me to live in. 

Our initial investment was around $20k.