Therefore the deeper pocket buyers can buy the best products and the buyers that have to buy on the b-r-r approach with little to no money will get stuck if and only if they can't stomach coming out of pocket on a bad tenant run like you said.

Do people use other methods than this? 

I used David Greene's remote investing method.

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You need to drill down deeper, R-2 is single family as well as R-3 and R-4, they are multi family in the sense of being more than one unit, R-1, but the federal designation does not change until there are 5 units or more.

While the market is stalling a little my wife and I are considering the "Shred Method" to pay off some of these properties faster.

Great book that talks about investing in a different light, not giving you strategies but looking at it from the reader's relationship with money and how their psychology plays into their preferred methods of investingGino

I of course want to avoid this, and was wondering the best method/ information i needed to avoid this stereotype.

I have been running the numbers for all different strategies (rent by the bedroom, BRRRR method, etc.)

The thing that I can never get past with these guys is that they spend all of their time traveling around, charging people tons of money to learn this secret method to make millions.