This is a Fantasy Business Empire.

Assuming $32 Million is buying 16 Individual Commercial Land Plots of 1 acre each, with each Plot having developed land, foundations, and a 10k sq ft Industrial Building constructed there, then each of those buildings is going to need 1 person on staff at any given time for Security & Maintainance.

So, each Location is need of 3 Shifts of 8 hours, meaning 3 Paid Employees. If each Employee is paid $60k/yr, that is $180k/Location, which is $2.88 Million/year for Labor. 

Expenses:

Land and Buildings: $32 Million.

Labor: $2.88 Million/yr.

These Buildings aren't for anything. They are just Empty Spaces ready to do things within this Creative Fantasy. The Plots could be anywhere, within reason, and still be strung together through Shipping & Transportation Systems.

Labor is locally hired. 

So, let's prepay for 10 years of this.

$28.8 Million pays for the Labor, which adds to $32 Million to make $60.8 Million.

Now, assuming I am coming up with $51.2 Million this year, how would I do that?

This is the Creative Problem. Open your Mind to new possibilities and expand this Fantasy.

Step 1 is finding a way to raise the money to have the Initial Conditions built and running.

Step 2 is figuring out how best to use such spaces as a Business Empire of Multiple Industries. This includes adding more Labor and Machines to the Buildings, with relevant Expense Calculations.

Use Spreadsheets. Google Sheets or Excel are fine.