**Who pays to have the boat "hauled out"? And if it needs to be trucked
somewhere, that would get quite pricey, wouldn't it? By a "boat yard", I
assume that is a marina?

Could depend on why the boat is being hauled, but the cost of the haul out
would ordinarily be absorbed by the seller if its part of the procedure
necessary to do a repair. A boat yard is different than a marina, at least by
my definition. A boat yard is a facility primarily dedicated to the repair and
maintenance of boats, while a marina is dedicated to mooring boats on a
temporary or permanent basis. Many boat yards are adjacent to marinas, but you
can have a marina without a boatyard and a boatyard without a marina.

**Yes, I have heard where boats are sometimes taken back to the factory for
repairs. I don't understand how this can be cost efficient if the boat
requires a tractor trailer/permits to move it. Is this the norm as well?

Thanks.

It can be very expensive to haul a boat back to the factory. Most common reason
would be a major structural problem with the hull, deck, or superstructure-
something of such magnitude that the savings available by using the less costly
labor at the plant will more than offset the
cost (and hassle) of transport.

Your seller will ordinarily opt for fixing something as cost effectively as
possible.
Most repairs are going to be insignificant enough that paying $80-100 an hour
for on-site technicians is still cheaper than spending a couple of thousand or
more towing the boat down the freeway.