Do you have a family member or friend who's achieved what you want to achieve?

IRS liens are no big deal.. worse case you just have to hold the property about 180 days and they fall off.. many people get scared of IRS liens myself I would target those as I knew many would not bid because of it.. 

An extremely overlooked method here is to open up listed rentals on zillow in your target market and call any landlords that don't appear to be listed as an agent or property management company.

Your target market will really depend on your strategy, so I would nail that down before deciding on the location!

Much like you, this is my real target of 2024. 

I've heard people talk about getting an IRR around 20% but I'm not sure if that's an outdated target and not as realistic as it may have been in the past? 

It’s possible it achieves positive cash flow as an Airbnb but I worry about the down months and other risks associated.

However if I do a BRRRR I can achieve infinite return by extracting all of my investment.

I target C+ class SFR since they appreciate better and have higher cash flow in my area (Dallas).

I usually buy value add but those have become impossible to come by in the market I target.