I would be most interested in talking about peoples experience and perspectives on this subject

Everyone has a unique perspective on how to tackle an issue.

So, a few credit cards at the parent entity level works better depending how much you plan to scale but this requires more work on the bookkeeping side.Just ensure you keep things as simple as possible and always think about things from an operational perspective as you grow.

I prefer a single basin from a maintenance perspective and typically always use this in rentals.  

From a time value of money perspective, I can see this as being valuable, but overall it does seem to be closer to a wash.I am more interested in the LLC, so I can write off expenses.

Sometimes it's difficult for people to shift from hypothetical to actual.

Louis, so just seeing if anyone could give me a local investor's perspective on the area? 

My perspective is forever changed. 

Is it some kind of foundation specialist to start with to at least know what it is and know if there is anything reasonable that can be done, a general contractor, or is this something I just write off as seasonal shifting of the foundation that happens with some? 

They shifted significantly in the last 30-45 days.