There's a pretty steady pool of healthcare professionals coming to the area for 3 month contract work.

Swim spas or indoor pools became the newest trend.

I have never been there but was always curious.Are we talking about something on the water?

We filed a claim immediately but was denied because the water damage stemmed from "shallow groundwater" infiltrating the slab then walls.

Often, the lower level has the laundry ( water, elec) and a bathroom. 

Unfortunately, last year the tenant failed to pay rent for a while which led to an eviction and the property was found to be significantly damaged -- water damage, fixtures damaged, etc..

I am thinking things such as:-Sewer & water lines to public or the installation of a well / septic system.

Your example of the ice machine or other hallway areas in hotels doesn't hold water, because unless the hotel vets every single person that enters that establishment they have no way of knowing whether the person is a guest or a bum or a robber.

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+, zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680, some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

In the meantime, you have two or three residential tenants move out, three water heaters go out or HVAC...all of a sudden your in a cashflow crunch.