In practically all cases the upside is higher than the pooled model if I do my job well.

I can see if your model is to keep the notes its more complicated given all the money you have to spend with third parties getting the things worked out and or BK or other things people do to squat in houses. 

For someone aspiring to become their own boss and looking to run an INDEPENDENT business where that business can borrow as needed from a lender, what entity structure is ideal?

We do not have the money for a down payment, so I put on my creative financing cap, and thought, what if I structure the financing as two separate models.  80% of the money needed for the property and rehab would be private lending with the folks at the agreed upon 6%. 

You could go with something like this from Amazon (it's not on sale now so you can get it cheaper sometimes, but you get the idea):https://www.amazon.com/Acer-Aspire-i5-8250U-GeForc...Has 8 hour battery (it says 15 but let's be real here lol), good graphics card, ssd, etc.Macbook Air's are a pretty decent deal too if you want to go Mac. 

@Jamie Hall I don't know if they support your exact model but off I were to get my license and want to focus on investment real estate I would recommend contacting @Ryan Luthi.

I find that investors can still cash flow if they are willing to adjust their models.

I visit and analyze the property, and estimate rehab costs (with experienced inspectors and contractors), add a buffer for unexpected repairs, and provide a financial model with an ROI comparison of a traditional rental vs. short-term rental.Any guidance/tips (positive comments only please) would be greatly appreciated!

My business model will not change (much). 

That is the business model for C/D investing.