@Gail K. https://www.zerohedge.com/covid-19/ends-debate-israeli-study-shows-natural-immunity-13x-more-effective-vaccines-stopping(Cliff notes in article.

My thought is you want more owners than investors for long term appreciation, but not sure I've ever seen a study on this. 

Whereas you can get a personal FHA loan for 3.5% down payment, however you'll have a LOT of docs lenders will be requiring to prove your income as self employed.

This process proves that tenant is not in violation of the lease for non-payment, and can help force the landlord's hand in making required repairs.But as noted, you may very well have a tenant that thinks having a new landlord allows them to get things they want, but aren't truly a required repair.

I have been (and am) studying vigorously and am ready to put my action to work. 

So getting back in (with a W2 job) is proving VERY VERY difficult!

I got my license right before my deployment so I had some down time to study more about real estate sales without the pressure of having to make sales right aways. 

The IRS doesn't need to prove you are lying, you need to prove that you are telling the truth. 

Study the market.

The challenge you might be facing is financing especially with smaller parks (under $500k), very few local banks offer financing for them, and if they do, they want you to have experience or at least prove that you know what you're doing.