They can make provisions for plumbing and electrical so you have room for it later.  

Would you be renting a single room in an otherwise empty house? 

And I got it kitted out for short term rentals with a theme, took bright photos that aligned with a YouTube video I found on taking great room photos, and I was off and running.

I know this has been asked in other forums, but I'm looking for the most up-to-date / best option to get good room measurements and create a layout of the property. 

It was originally a 4bd 1 ba home (1 room being an office room but classifies as a bedroom) but the original owner added an addition off the back of the house.

This is the option I typically take  3) alternate rent strategies such as STR, MTR, rent by room, etc can result in significantly better cash flow.  

Aggressive marketingWe currently have a fairly aggressive marketing strategy but there is always room for improvement.With the current NAR settlement, we will no longer be able to market commissions to agents on the MLS.

Columbus is a booming market for tons of room for growth !

Find a property, develop it, live in it, rent it out and then repeat.Another approach, which I believe may have already been mentioned is to find a mixed use property in lieu of just focusing on a 3plexAnother approach is to find something near one of the universities and run your rental analysis as if you are renting by the room at dorm like prices in lieu of renting each unit individually. 

Get a 2 or 3 bed and rent out the rooms to your people.