On the surface that sounds like a pretty high monthly insurance number.

My explanation barely scratches the surface but the broad strokes should get you there.If you like, we have a call about this to walk you through it all.

Can roof drainage be drained on the lot, catch basin, or tied directly to the storm system?

Just shooting the BS on the back porch.Does not include office cost or revenue.There is a lot of demand for Boat/RV storage, but the payback is really far out there, with Rock for surface.  15 to 20 years.Their cost to build, let alone the headache/risk is in the $3mm range, so they are selling right at cost reduced for some age. 

Fire is tricky because there is a fine balance between surface damage and structural damage. 

The structures were also built before set-back rules were in place and are close to the road without paved parking surfaces.

I also can't tell the condition of the walls, insulation, drainage around the building, roof, gutters, soffit, fascia, etc. 

Another thing a surveyor provides is notations on the survey about any existing easements, for utilities, drainage, etc.  

Not all of them are.I am just scratching the surface on here and this is a topic that many have written books on including J.

This one seems decent at $430https://m.lowes.com/pd/GE-Smooth-Surface-Freestanding-5-3-cu-ft-Electric-Range-Black-Common-30-in-Actual-29-875-in/1000041023Thank you!