(still a good option)Bandit signs can also be pretty cost effective but just be ready to hustle and put these signs all over town (not a big fan of this approach, but I know many wholesalers get massive deals from these) In the beginning I had more hustle than money, so I hustled more using cheaper marketing methods such as these.

We purchased 3 rental properties using the BRRRR method on our last purchase.

It just seems to odd to a novice that this one singular method would be singled out.

They are made by solving people's problems.

Since you do not occupy the home you could buy another Primary with 3-5% down and again use the BRRR method. 

I have heard of the method of cold calling craigslist rental ads and asking if they would rather sell. 

@Michael Glaspie has a book called 'The Elite Investor - A military approach to real estate problem solving' He is also a co-host of a podcast called 'Military Cashflow'There is also 'Active Duty Passive Income' which is a platform to check out as well.

The BP calculator method taught in every single webinar or the 50% "rule?"

It’s definitely a California method, and I think other southwest States.

For passing on wealth to future generations the best method is to buy and hold and let the kids inherit.