For the most part it's been a GREAT experience, and profitable.

Hi @Michael Didion I recommend Paper Profits by Josh Andrews.

I don't anticipate the rehab being $50K so whatever I don't spend is profit. 

I’m sure my requirements are high but we both have businesses to run, your profits shouldn’t be put ahead of mine and vice versa. 

They are sometimes used heavily and generate monthly profit while others are barely used and don't even cover the utility expenses, let alone the cost of the machines.

I sell larger commercial properties in the millions.

I’ve made $600 profit so far!

He owns a used car sales business, so what does he profit each year?

Schedule C on your taxes is titled "profit & loss for business" so with your STR income now being labeled as a business, (because it is) lenders will want to see consistency and growth in order to be able to use any of the income to offset the STR's debt services.  

I am reconsidering if I should hold the flip under the C-Corp or perhaps create a NEW LLC or S-CORP, take out a SBA Loan, fund the house, and pay back the loan immediately and have access to the profits for a future flip or to re-invest.