What you describe is considered personal use and would not be deductible. see #3 below
What is a day of personal use?
A day of personal use of a dwelling unit is any day that the unit is used by any of the following persons.
1 You or any other person who owns an interest in it, unless you rent it to another owner as his or her main home under a shared equity financing agreement (defined later). However, see Days used as a main home before or after renting , later.
2 A member of your family or a member of the family of any other person who owns an interest in it, unless the family member uses the dwelling unit as his or her main home and pays a fair rental price. Family includes only your spouse, brothers and sisters, half-brothers and half-sisters, ancestors (parents, grandparents, etc.), and lineal descendants (children, grandchildren, etc.).
3Anyone under an arrangement that lets you use some other dwelling unit.
4Anyone at less than a fair rental price.
https://www.irs.gov/publications/p527
Yes, Nephew the Lawyer thought about that - we were joking.....