If you are talking about renting, not buying, it does not hurt to phone the resort directly a few days ahead to confirm that they have put the reservation into your name. If you made your arrangements well ahead of time, you should have received a confirmation with your name on it, but the central reservation office of large resort groups have been known to forget to inform the specific resort of the change out of the owner's name. Or maybe the resort itself overlooked entering the change. Human error can occur. If you find a problem ahead of time, you can get back to the owners and have them straighten things out for you.
If the resort is not part of a chain such as Fairfield, Bluegreen, Westgate, Hilton, etc. the owner may have contacted the resort directly. I don't know whether such a location sends out confirmations, so in this case, it may be especially comforting to call the resort to be sure you are expected.
I believe problems are rare and seldom intentional when they do occur.
Mary D
Mary D.