House hacking can be a suitable option but it can get a bit tricky down the line.

Is that suitable for “high” traffic areas?

You can almost never maintain any of the existing infrastructure within a building because it is not suitable for residential use. 

Out of all the offerings, these two are both suitable for medium size portfolios like yours and are very similar in terms of price/features. 

Absent that, yes, you are responsible for the rent until the landlord finds a suitable tenant along with any costs associated with that since….you are Breaking Your Lease.

Indy/Minny seem to offer cheaper property and a greater return right now.I have been looking at property south of Minneapolis in Farmington, Apple Valley, Shakopee and seeing suitable options but can’t help but think Columbus’s growth will just outshine everyone else.

My parents have a 20000 flat lot with a small SFR in fair condition on RD1.5 zoning in Los Angeles county, suitable to build a 10-16 unit apartment or subdivide to attached/detached condos.

You can offer any price you think is suitable and any terms that you feel is fair and necessary to make the deal happen. 

Landlording is not suitable for everyone and I would guess that most struggle (or should) with the scenarios presented in this thread.

I have been told that it can take up to 30 day to start getting traction when you list your property with some of the insurance placement agencies - IF You have a suitable property.