I still need to get more properties by using conventional loans and develop a more stable business credit before doing LLC. 

National savings rates have plummeted, increasingly reliant on credit cards to fill financial gaps.

Do you have credit cards with places like Lowes and Home Depot that you can use to buy materials now and not need to pay off for maybe 90 days?

STRs sound like too much work to me.Portfolio income = stock dividends, interest income (from banks, credit union etc), Master Limited Partnerships (Form K-1), Business Development Companies (Form 1099), bonds, interest earned from investing in a real estate debt fund, interest earned from being a private lender

You can also structure your offer with I know at least a 2% seller credit so that you can be paid at the closing table when you're buying. 

It sounds like you're on the right track!

I think tracking turn costs, vacancy rates, insurance costs, etc. in connection with a lot of this data could all be helpful iterations.

One other thing about investing in Jackson is that I find it hard to track the value of the house that I own there, which I bought in 2018 .

You will make less per transaction and get less credit, but you will understand all the systems and have clients.

The investor's theory behind his suggestion was to use the 500k loan to wipe all debt and only pay on the new loan, I'm not sure if this would be advantageous financially due to my current debts monthly payments set at: LTR = 1900MTR = 1500HELOC= 550Vehicle = 850Total = 4800 monthly At current loan rates for 500k, and a 800+ credit score be a lower monthly than the $4800?