It sounds like you're studying, which is a great first step.

First, I'm working on reading/studying information about Flip and Sell as an active income option.

Learn, study, trust in yourself and what you have to offer and you'll do fine.

I recommend the mobilehomeuniversity.com boot camp, both home study version and in person.  

Again, this self-study and completion of a few courses will be attractive to a property manager who is looking to hire.3.)

Basically, I can get pre-approved for whatever I want, so long as the market study comes back with supportive rents.

Now, I'm at a point in my life where my W-2 job is making me a stable income (tax accountant) and I'm very interested in investing in real estate.My first course of action (other than studying for my CPA exam and subsequently obtain a higher wage from my W-2) is to look at a fourplex in the Bellevue, kirkland, Redmond area.

For example, the more and more I research, read, go through case studies the more I realize that the land world is a complete monstrosity.  

Study the value of other homes with similar stats to help determine what the ARV could be.

I might start by selecting a few possible locations that meet their target size requirement and then start doing feasibility studies, but those are going to cost money.