But bottom line just go and buy something using simple fundamentals you've learned to date, and complete that full process end to end from scouting to managing your tenant. 

I have mastered flipping on a fundamental level.

These parameters will help decide what kind of yields you are searching for, which you can use to filter down your list of macro markets.Then I would start by looking at the macro market's fundamentals, that is the population, job and income growth over time.After that, I would look to see what the rents and home prices are and how those are trending as well.I would do a similar analysis, but at the sub-market level for the metro area you are considering investing in.Other metrics that I find valuable to understand are household income, poverty, unemployment, and educational attainment.

Those questions are of course fundamental, but are best addressed in a separate post.

However, absent any economic shock, we can sustain the economic fundamentals because all economic actors are operating on borrowed money.In a simple way, you can think of it like a ponzi scheme, but that is the nature of a debt-centric economy with fiat currency.

Location is primary and fundamental.

A real estate wholesaler do not sell properties, you are selling a contract and nothing more; a wholesaler business is fundamentally with contracts you dont buy or sell properties. 

There's a fundamental business principle called "minding the store". 

Now, the market fundamentals might just be so strong that the value increases or stays the same, but only because incomes and rents go up so fast.

Interest rates are low and will continue to be as long as economy fundamentals are poor.