Charitable donations

My parents are in a nursing home and don't want to sell their house.  I am responsible for the upkeep of their house and any expenses to fix any items since they are on Medicaid and I have POA over both of them.  Mom has at least 4 bedrooms and closets full of clothes (some she has never worn) and I need to start by cleaning all these out and giving to a charitable organization.  Once I do this, can I claim the deduction on my taxes since I am responsible for their house, upkeep, and expenses?

Thanks