They can keep an eye on things and handle issues that come up quickly.Hope this helps!

Rents will likely catch up at some point, but prices have shot up faster than rents.   

I have been eyeing a property that is listed as a fairly new mobile home sitting on almost a full acre, checked out tax records etc and the land does belong to the seller.

The wider the net, the better the catch. 

But we both are determined, have an eye for design, and enjoy the learning process. 

Each market has its own dynamics and risks, so spreading your $5.3M across Hawaii (Kona), Miami, and Honolulu could be a solid strategy.For the short-term rentals in Kona, Hawaii, the tourism industry there is pretty robust, but do keep an eye on local regulations and potential changes in the vacation rental landscape.

I've seen some beautiful outdoor paths & patios done this way etc, fill in the gaps with sand or concrete.You might also donate it to a habitat for humanity store (call and ask if they'll take it first) where they might get it in front of the right set of eyes. they might give you a tax donation receipt?

Having this bird’s eye view of my income for the next few years, how can/should I be optimizing this situation?

The key in either type of location is to make your home stand out with eye-catching decor and theming. 

(I do not live in Orlando, my retired father does)... and my father takes care of all the maintenance (repairs, hiring contractors for electrical, HVAC, roofing, etc.) as well as showing the property for leases, he is my hands and eyes there... all for free, I do not pay him a salary or any compensation, and he does not want one.