I am seeing a lot of AirBnBs already with high ratings for location 

This money would change my life but i have a hard time believing this.

Currently living in our home and plan on renting to keep low interest rate while we house hack a duplex to start our investing in real estate.  

Being that rates are up it's another way to offer exatly what you mentioned; the chance to own for a couple hundred bucks more than renting.Thoughts?

Last year, I purchased a SFH under market at 7.65% interest rate and did some rehab to up the value.

One other advantage is that many of the builders that I have worked with are able to incentivise the sale with interest rate buydowns that make the deal work.Best of luck moving forward. 

Quote from @Sean Kirk: I'm seeing what seems to be 10%+ cap rates on roofstock.

I'm not sure what group you have your eye on, but I know that Michael and Elizabeth Chang has one of the best STR arbitrage groups out there!

Some areas still offer strong appreciation potential along with steady cash flow, and when working with trusted lenders, you can find competitive rates in places like Memphis, Little Rock, and Oklahoma City, which tend to perform well on both fronts.

Start with a competitor analysis—see what STRs and MTRs in your area are charging and their occupancy rates.