Although isolated areas did have major problems in the rental market it is not common across the board.Rental rates on the other hand, although they did drop by about 2.5% following the 2008 crash they have climbed steadily.

You can't just look at one facet of something and think it can change in isolation of everything else.  

The sprinkler system was isolated from test."

That won't provide true isolation of liability, but it will provide more coverage to pay for liability.The bottom line for LLCs or LLPs is that they provide liability protection but do not affect taxation rates.  

It was very isolating.

Isolate and focus on tasks.

Another thing is those who are too poor to afford housing are very isolated.

As @Sean Morrison mentioned, Missouri is a state that allows the creation of a Series LLC, meaning you can form an "umbrella" or "parent" LLC with the state of MO, then place multiple properties into "baby" LLCs under that umbrella and isolate liability between them.

It separates liability, isolates the right kind of income to the right type of entity, providing what is typically a great tax strategy for asset protection and tax purposes.  

The bank saw something from appraisal they wanted fixed and requested it be evaluated by an inspector, I said "ok" already done during inspection so I  had Inspector isolate that part of report and send to me.