2 part question: Child dependent and parent dependent

Part 1: I recieved legal custody of my foster/God daughter as of April 15. We started off under Kenship carefrom Feb13, 2023, then moved to Fostercare July 10, 2023. I'm wondering since she is technically adopted at this point are there any tax credits that I can claim for her? Also, how would I claim her since she is not my biological child?

 

Part 2: I care for my disabled father who does not live under my roof but I do take care of all financial, legal and medical responsibilities. Am I able to claim him? If so, are there any other tax credits i can take advantage of?