What my question is how much do people look into the 50% rule and the 2% test as in the videos.

I made a video about this just the other day. https://youtu.be/iZ1OMKWfjFgIf your income isn't great, you'll want to do both in the same calendar year (or at least before you file taxes for the following year) because you'll file a Schedule E (rental income).

With sufficient (I can't say "good" or "excellent" since those terms relate to score values..... sigh) credit the rate and the PMI will be cheaper.Still.... recognize that you need sufficient income to justify the loan. 

Then I go and watch more videos lol.

There are lots of videos about VA loans, their benefits and their limitations.

@Jonathan Klemm excellent, thank you.

You can find some excellent deals in "sketchy neighborhoods" as you put it. 

You'll never "pay off" the property because you'll keep buying more multifamily, but you will build your savings for purchasing power really quickly.Look up velocity banking if you want videos or more articles on how this works.

I don’t find the app helpful and I’m not finding it easy to access videos or other info.

You might also check out @Whitney Sewell’s excellent podcast, The Real Estate Syndication Show.