[Zeke]

They can but no one would pay out insurance or loan on the construction. Post reconstruction financing might be an issue as well just like some companies do do branded auto titles. Same thing goes for insurance.

Sure, I'd do it, but the interior walls would have to be stripped, at least the outside and interior bearing walls to check any shear panels and framing fasteners. Of course it would require a pretty extensive in situ survey before lifting it up, leveling, moving back to where it needs to drop (if it's shifted) and also some foundation work may be required (new anchors and tie downs at the min). Being shingled I'd probably take most of those off as well.

IOW, unless it was a DIY project controlling labor costs closely by direct hire, meaning setting up a company if one is not already a contractor type and in business. The costs would approach building from scratch too soon. There would be no financial room to cover a lot of different sub's overhead and profit. The profit would have to remain in the house, meaning all work done at cost of labor and materials alone.

And there are the aforementioned potential post build problems. One other thing that comes to mind is construction inspections. How do you deal with inspecting all the wiring and plumbing, etc.? Everyone would be leery.

Out somewhere they don't have an overbearing AHJ, it would be much easier. There are such places in the US buy NSB is probably not one.