Fmc is a wolf but doesn't know it

Looking for a book where fmc is a wolf. She doesn't know it though. She was adopted and her sister died in a car accident. Dad moved them to a new area and then he was working in Seattle? Her mom was grief sticken and abusive blaming her for her sister's death. Boys at her school realize she's their mate and there is a secret commune they live on and the humans don't know they are wolves. The mate bond causes her to get sick when her mom makes her stay home. She then goes to live with the boys and there is some drama there where she is almost killed. She turns out to be very powerful and her mom gave her up to protect her.

Anyone know what this book was called? I think it may be a series but can't remember.