I evaluated a variety of tools, and came across FlipperForce.com.  

Congratulation on the first step investment.I would recommend you to evaluate the cash on cash that you have in that house, looking at your GRM is really large.I don't your market and the size of your residence, those are things to consider in future.

While I don't believe you should pick a lender based solely on interest rate, that is an important factor in evaluating cash flow when you're talking about house hacking. 

Will say though, that you can be successful investing OOS in Class C rentals if:1) You buy at the right price, using +20% for Vacancy & Tenant Nonperformance2) You build a good team that's transparent and supplies narrated videos for maintenance, annual evaluations, etc.3) You buy in the "better" Class C neighborhoods adjacent to Class B areas, so you catch the overflow from those Class B areas.

Learn how to evaluate sales and listings of similar homes in the same neighborhood yourself using Zillow, Redfin, or Realtor.com data.

While evaluating potential investment properties these past few weeks, I have realized that the average rent in Austin is comparatively lower and due to high interest rates and property tax, the outcome is mostly negative cash flow. 

Add to this fact that you will not have access to evaluate the condition of the property prior to sale unless you illegally break into it.

- I know in Florida there is a 4 system to be evaluated.

You could start by getting a soil scientist out to evaluate the land - he won't know exactly what it'll perc for without doing the test, but he will likely be able to tell you if it's a dead deal right out of the gate.  

Having confidence in your ability to evaluate the deal and that your numbers are accurate?