While all your TSP/ IRA/ 401k/ whatever friends are losing their minds because they lost half their life savings, you can stretch out on your couch made of $100 bills you got from owning rental property, crack open a cold one, and watch the world burn while shopping for the next killer deal.

@Chace Fraser I do like the sound of that "Rich Dad Poor Dad" approach although house hacking might leave me little positive cash flow unless I get a killer deal quadruplex.

That PMI is a real deal killer over the long haul!

Not a deal killer per se but I'd be wary of owner financing when real estate is selling like hot cakes!

Impatience is a killer.

(Water/Sewer/Trash is the real cashflow killer)

My goal is to keep tenants happy and avoid vacancies (cash flow killer). 

I should be closing next month on a killer deal from a owner who inherited a property free and clear with a problem tenant.

So you make your money when you buy by negotiating a killer deal so creating instant equity, or buying a good business (high stable/increasing demand) with a moat so limiting competition.

Otherwise, go for whichever one happens to be the most killer deal at the time.