Water issues are the most common. 

The PM is slacking and poorly addressing tenant issues. 

It's usually best to talk with your neighbors about your plans and get their support as one of the variance tests is that the requested relief does not cause a public health issue or alter the essential character of the neighborhood.Try googling "tests for a variance in [your state]" and talk with your local zoning department.

As you said, this allows you to track LLCs (locations) and properties (classes and/or customers).

The only issue appears to be the missing breakers and it being turned off by the bank.

The location all in,cost him X; he got an appraisal for the bank from CBRE national firmof XX and now the firm who called him mentioned paying XXX.

@Rory DarcyRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

I want to ensure that the structure of these investments I am working on correctly address key issues for investors. 

This past weekend, the guests tripped the circuit breaker and neither the guest, host, or co-host knew how to locate and reset the breaker.

A grand negative cash flow is not the issue.