Without nerding out on debits and credits, this is the simplest way to view it.  

As a wholesaler, I want the simplest/fastest deal possible to pass off to my investors.

That seems simplest in my mind, lease with sublet rights, paying them say 60% gross revenues.

PML in their simplest form don't by products, but rather create and manage assets, in this case the loans.

I agree with  @Shannon Smith to start with house hacking, it's just the simplest way to do a deal and get some experience.

The simplest answer is buy the best you can afford to buy.

Honestly, the cheapest, simplest way to test this is with a receptacle tester, easily available from Lowe's or Home Depot for under $10. 

The simplest calculations is ROE, Return on Equity:Net Income/ market Value of EquityThe only way the ROE could ever equal 0 is if you had no income. 

Most of these folks have swallowed the marketing whole and believe it's the simplest thing in the world. 

I personally think that, ALL THINGS BEING EQUAL, holding forever is the simplest, least stressful path to wealth in RE.But some people, like Joe for example, clearly thrive on the process of recycling, and I suspect the thrill of the hunt.