Now, this is a very simple approach, but it gives the high level view.

In simple terms, the entire cost to the REI is only what cash that comes out of their pockets.

If you're just starting out, you can use something as simple as Excel or google sheets to keep track of income and expenditures.

Simple as that. 

Whenever a lender tried to undercut the market in 2020 by 0.25%, they got slammed with more business than they could handle, it would take 4 months to close a simple purchase or refi, and they'd get a bunch of horrible reviews online, local realtors would start to hate them, you get the idea.

Since I have worked in the oil & gas industry for 20+ years, this was a reasonably simple transition for me.

@Moses Carrillo I only see one very simple solution...buy the most units you possibly can as soon as you can.

It's a big jump and it takes a lot more planning and analyzing compared to the relatively simple process of managing single units.

I have been around Real Estate since 10 years old and over 9 years I haven't garnered a lot of knowledge, but the one thing I have realized is Real Estate Investing is basically simple as this.

You're correct, that question does seem amateur but not because the answer is simple.