As far as her dad, she knows that her father dislikes me and there is little I can do for her with that.
I think you may have misunderstood my earlier comments about FIL^^. It has nothing to do with him disliking you. What I meant was to offer to help W in taking some of the burden off her shoulders while FIL is undergoing chemotherapy. Just offer then let W decide to take it up or not.