Now, this may have changed in the past couple years so YMMV.I thought I could take a small ugly mobile home park and setup nice, cool, super energy efficient tiny homes on those lots. 

Install some kind of energy meter inside the main panel and track the usage for the circuit the hallway lights are on and just pay that usage and put the meter back in the tenants name.Figure out what is driving up costs and do an improvement program to drive those monthly bills down, caulking, insulation, more efficient heater etc. 

If I were in your shoes, I'd stick the cash in a high yield checking or savings account (or Bitcoin*) Then, once you pass the bar and figure out where you'll be for the upcoming chapter use that cash to fund the most investment-efficient purchase you possibly can, like a legal 4-plex in Holladay, a Triplex in Sugarhouse, or the NV equivalent. 

I am quickly going beyond the limits of what I can manage with spreadsheets and think utilizing a database structure will enable me to become more efficient.  

Would it be better to buy a fixer upper in the next great location during a buyer's market and do a spectacular (and cost-efficient) renovation?

I am new to real estate and I am seeking aid In specific looking to learn the most efficient way to locate properties, structure the deal with an investor, have a reliable lawyer and appraiser to ensure accuracy and efficiency.  

@Daniel Saunders just a word of caution as it relates to 3rd party management; we have found that this solution only tends to work well if you have a park that is already stabilized and running at or close to efficiency. 

I want to do a little research first so I'm more versed in the market and can speak and act more efficiently with my agent when I do begin my search and purchase phase. 

Separately, are there aspects of the QI service that you provide your clients that you would like to see made more efficient because it would make things easier for you?

Also, new energy efficient washer/dryer are a plus for renters.