Looking over your numbers I'm surprised a couple of them are so low - mortgage expenses, repairs and capital expenses.

In previous roles, I was responsible for the asset management, capital improvement, repair, and maintenance of an ANG Fighter Base worth over $400M.

Of these professional wholesalers, nearly all of them will be well capitalized professional real estate investors or large businesses doing hundreds of deals annually with many years in and around every part of the real estate investment journey.

But you will need some good capital and reserves unless you have a very trusted boots on the ground partner that can help you out.

Working on my financial fundamentals, namely saving enough free capital to invest.

My second sheet would start with the amount of capital you have to deploy.

Additionally, most of the costs to make an asset ready for it's intended business use are capitalized and part of the cost of the asset. 

A great book on the overall subject is Jonathan Tepper’s “The Myth of Capitalism: Monopolies and the Death of Capitalism”.

While I am seeking cash flow and capital appreciation (who isn’t?)

You should have around $100,000 of investable capital in order to be a multi-family investor.