Hypothetical:                Make 100,000$                                                                Project Growth- 1 Project with Own Profit of 45,000                                  - 1 self funded flip- 2 Projects with own combined profit of 30,000

I suggest a good dose of C combined with B (cause that's inevitable).Just concentrate on #9 and #10 - real estate investing is a long game (at least IMHO).

You can combine county data with a background service like Spokeo, but nothing is guaranteed.

If you combine avoiding closed cities with MSAs that are growing and/or have more tax/business friendly outlooks and invested outside of them you stand a good chance of making some money.

I’ve found a commercial lender that will give me a line of credit on 80% of the combined equity of the properties. 

Or, is the combined loan capped at the maximum loan to value amount?

I decided to combine some work with pleasure. 

We make roughly 120k/year combined.

Due to their level of combined income and no past issues with rent payments, I made an exception on the credit and increased the deposit.

Combining the two is a cross between a horse and a donkey.