TurboTax won't let me choose parent as dependent

We moved my stepfather to an assisted living (AL) home in October 2025 for medical reasons and paid for the first 3 months of his care. We qualify for a deduction as he is in AL due to requiring supervision due to a cognitive impairment. TurboTax won't let me list him as a dependent because he did not live with us for at least 6 months last year, however since he went from his home to AL he technically never lived with us. All the information I am reading says we can deduct the payment for his care at the AL home, but I can't figure out how to enter it in Turbo Tax. Any help is appreciated. Thanks.