g'day Barry, and welcome to CF.
I wish you luck in your search, but at least in this neck of the woods,
boat and house sitting gigs are not paid positions. Generally done by someone who needs temporary domicile, often (in our circles) whilst something horrid is going on with one's own boat.
We've friends, cruisers in a very
small boat, who have done heaps of house sitting, mostly to get ashore during the winter months when life at
anchor in a
small boat isn't anything like they tell you at boat shows! They are not only unpaid, but often make home improvements or
repairs, look after
pets and leave the premises better than when they arrived.
All the above is in Oz... things may be different in NC (I guess that's
North Carolina, not
New Caledonia??).
Jim