Just as I bought our first SFR in 2016 and grew that business to 167 units as of today.

House hacking is when you buy any 1-4 unit property as your primary and rent out the other units or rooms to help cover your mortgage.

The last thing you want is a brand that will take 2 weeks to get repaired if needed.We have Maytag units in our lake house and they have been rock steady for 7 years.

I suggest finding a local AirBnB investor who can guide you on the prices in your area and help you decide what kind of units are suitable for short term rentals. 

Add 100 chargers to a 300 unit property and I bet there's no way the transformers and electrical infrastructure at the property can handle that. 

(If curious, my residential real estate investor clients from 10 years ago [you can find my 10 year old bigger pockets dot com posts :], at the time buying up 2-4 unit properties, a lot of them are now done with the 'human' tenants and want to 1031 into something that is ACTUALLY passive, so yes Starbucks comes up, thus I watch it).In my case I zoomed all the way into a specific brand (which then allows me to make very sweeping generalizations across an entire state -- but still not the entire country), I'm not suggesting you do that, but SOME of the variables need to be narrowed down, before you can gain any useful insights. 

For example in many jurisdictions I can STR units in a duplex but cannot STR an ADU (some jurisdictions will let you STR if you owner occupy).

This means buying a property with at least 2 units and living in one of the units and renting out the others.

As a non EU citizen, I will need a permit to purchase certain types of properties, except for residential (unit in an apartment). 

If you've got a higher price rental deal (multiple units), with a LOT of equity in it (I like 50% and above for deals I'm gonna sweat over), and after refinancing my return on the equity position in the property is going to be 20% or above I'll consider it.