The click on / locking type seems like what most investors use, but repairs seem difficult without having to re-do a large area. 

Those that respond “$0” or something ridiculous, you can request income documentation from them to justify.Don’t be afraid to share with them how much your property taxes & Insurance increased and that YOU cannot afford to absorb them.ALWAYS get an increase or something of value annually when rents are increasing or tenants will start thinking they should never have an increase, making future increases that much more difficult to negotiate.

this is exceptionally difficult to do. 

Is it really difficult to start?

Assuming adding a vent isn't unduly difficult, i.e. the dryer being in an interior room far from an exterior wall and/or no good access to run dryer pipe, I would put it in on my own.

I can see central bank currencies making it difficult to convert Fiat to privacy coins.

RE is a get rich slow game and there are increasing number of people talking about how difficult it is to retire from your day job even with large numbers of rentals because cash flow is thin.On the one hand there is the Small But Mighty portfolio mentality which I believe is a book in the BP store by Chad Carson.

Although some investors don't have LLCs so it would be difficult to tell if it's owned by a primary homeowner vs an investor.

As I was inputting the properties, I noticed that Stessa does not support Portfolio loans (https://support.stessa.com/en/articles/2423581-mortgages-loa...)This will become very difficult to keep track going forward.

While deals under 80k can be difficult to find, they are out there.