What other concepts could be added to list of options? 

I understand the concept insofar as if I'd purchased the property, the basis would be what I'd paid it.

To me that is negative cash-flow, because I include hard and soft expenses. 

I sure like the concept though.. and I bet its fun.

I'm surprised you're still hearing negative things about it considering there's been so much positive press and chatter lately.

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

As the investor gains experience, they are not only able to more successfully foresee the “bumps” along the way, able to handle recessions, temporary negative cash flow, unforeseen capital expenditures without panicking, but will also recognize the opportunities necessary to turn a loss into a break even.

I have concepts that I hope to expand on, strategies that stick out to me when reading and podcast so far are buy and hold properties, the BRRRR method, and house hacking.

@Jordan Meltzer unless you find a screaming deal - a Class A property won't cashflow for 3-5 years.Class B: 1-3 years.Class C: most investors don't properly understand the risks, so should stay away from them.So, you may need to deal with negative cashflow, but plan on appreciation increasing your wealth.

Nothing else.Every other platform doesn't have the reach that the 2 big ones have and in some cases are very owner negative.