Yes, you can claim expenses for both the rental and the personal deduction for their proportionate share.
When you convert your home from personal to rental use, you will need to allocate the interest/property taxes for each section.
Ex: Lived in home for 9 months and rental for 3
months. Allocate 75% of interest/property taxes as a personal deduction and 25% as a rental
deduction. Navigate to each section to enter their proportionate share.