Being in the industry for over ten years and running over 500 machines myself I can only say they are bad dudes. 

A big part of the puzzle is making sure you run a solid cash flow analysis.

The problem you may run into is the lower appreciation rates compared to the South.Considering Commercial Real Estate:Have you looked at mixed-use properties?

Run the calculations on the expense of doing a refi at a slightly reduced rate vs. keeping the current loan for whatever period of time you think you will hold this house.

Thats a wise move and exactly how you would run the scenario!

I'm using a software that runs on A.I. helps me capture organic leads, automation, my socials, A.i. follow up and has it's own crm.

I would just take into account that a lower down payment will mean a higher monthly payment so be sure to run the numbers conservatively in order to ensure your STR revenue is able to carry your monthly payment with this higher mortgage cost. 

Any way around paying the very high property tax, school tax etc. in SC?  I purchased a Home in SC as a second home and the taxes are through the roof.  Any ideas how to lower this or use it as a owner occupied proper...

Personally I would defer this question to someone with design experience, not sure I have seen too many on here commenting.You could do something neutral but remember especially with the rug if it is light color it will likely run quickly.

Not sure if that is why I’m running into issues here.