@Stuart Udis you don’t need a permit to put up a temporary tent for events on rural property.

These do not have plumbing and are for temporary stays like the cabins in state parks, camp grounds...

My family and I will be moving to the Eastern Shore later this year if plans hold.

The North Shore REIA is in Covington and is more similar to ours.

There was a temporary connection for construction, this cost would be for the permanent installation.  

Unfortunately it's only temporary.

I'd also find out if this is temporary (ie one of them lost their job and is looking for a new one) or if it is permanent (ie they are moving in so the parents can help take care of the kids while the parents work).

Or incentives go a long way to shore up a longer lease.

Also, the higher costs are also attributable to a lifelong benefit over that of a temporary (20-30 year term). 

You can also replace the temporary construction posts with permanent support, but you will have to cut the floor at least 24x24 and pour a concrete footing before setting a new post on top.