Ten inexpensive properties in the Midwest will be in undesirable areas and may lose money…..

A combination of mortgage notes for cash flow and desirable properties in high appreciation areas (not cheap, undesirable properties in the Midwest.)

It may help you dispel the myth that people with disabilities are a bad risk, undesirable as tenants, or are likely to have undesirable service animals.In some jurisdictions, you can't discriminate on "source of income".

Note my late fee is high enough to be a penalty, but it is not high enough to compensate me for effort to hunt down delinquent rent (my time is precious, I expect to be well compensated for my time especially if I am doing something as undesirable as collecting delinquent rents.  

You were made aware of undesirable conditions and made immediate attempts to address the problem through a capitol improvement not just a simple repair.

Military housing is at high occupancy on-post, making various home displacements more common off-post in hotels or short term rental homes.Small multi-family homes vary in neighborhood types, but the majority of them (but not all) are in a low to middle class area, raising the chances of getting unappreciative or undesirable tenants.As I mentioned earlier, I have no properties and only watch the market for now.

I am curious to use the hive mind to learn about best practices for revenue management for short-term rentals.One trick I have used is to crash prices for undesirable dates, or dates that would otherwise go un-booked.

Areas are cheap because they are undesirable to invest/live there's no significant inefficiencies anymore. 

The first three rules of RE - location, location...Is there some undesirable situation near your property that is causing the issue?

They are cheap because they are undesirable and will attract crappy tenants.