@Carl wrote:
- My family and I lived in the property for a week so they could enjoy the beach/lake while I was preparing it for the next renter.
That is personal use, and every day counts as a personal use day including the day you arrived and the day you departed.
Days used for repairs and maintenance.
Any day that you spend working substantially full time repairing and maintaining (not improving) your property isn’t counted as a day of personal use. Don’t count such a day as a day of personal use even if family members use the property for recreational purposes on the same day.
See https://www.irs.gov/publications/p527#en_US_2019_publink1000219182
