First off, on this Memorial Day 2018, I sincerely thank you for your service and for your sacrifice!

You'll earn a greater return doing the same thing you were going to do anyway because your money will literally be working in two places at once. 

Those are more passive type returns (assuming you're an LP). 

If these properties are not available you would be better off parking your cash in REITs or some other form of income funds producing higher returns.

@Vijaianand Thirunageswaram Regarding your returns, I notice that you are a broker, do your returns include the commission you earn on the sale?

If you can find a reputable park that provides legitimate management services for a reasonable fee, and can also provide rental history so you study the analytics, and the return on your investment is worth it, go for it! 

People are more willing to park 20% down payment into a property and take a 4% return on their money because it's "safe" 

I'm starting to think that the return just isn't at a desirable level in central Nebraska vs what I can get from... lets say Stocks. 

I am still confused as to who or what guarantees your % of return on Tax liens?

I am currently on a deployment through the national guard and am expecting to return home with about 10,000 dollars.