Also, I have all this video equipment laying around and real estate has given me too much time on my hands (which is the whole point of buying rentals) so I needed something to keep me busy. 

Dirty filters cause probably 25-50% of hvac issues in rental homes... it restricts the airflow, causing equipment to fail or not work correctly.

In my area, there is a requirement for cooking equipment (stove or microwave) to be provided by the landlord, but no such requirement for refrigeration.

You can add a vending machine, laundry facility, customize interior colors different than the apts around you, etc.

I'd probably slot that expense with office/trade equipment.

Understand if/what wells and sewage treatment equipment you'll need to operate.

If you buy a property and see laundry equipment in the room with a sign on the wall or decals on the machines that could be considered "constructive notice"...if you don't get a lease from the seller it's your responsibilty to find out if one exists. 6.

Our plan for the the first year was to purchase two cashflowing properties, then use the cashflow from those and anything else we can scrape together (income we don't spend and toys and equipment we can sell) to make purchase #3 in year 2.

The dental practice claimed bankruptcy, and pulled all the chairs and equipment out.

Become equipped to make a non-contingent offer right then and there before you leave the house.