I still don't think you can call it "100% yours", even after three months of trying to contact the lady. There is still a slim chance that this lady will want to claim the iBook back. It's never truly "yours" until you get a verbal or written go-ahead. Nor should you ever sell it, based on the way you obtained it. Unless you chase this up for once and for all chances are the lady will want it back, and get nasty out of the blue.
To make it clear, I'd send her a letter clearly explaining that since you haven't heard from her for some time, and that she hasn't paid, her iBook will be donated to a person in need (ie = you!!!). If you do not hear from her by a certain date you will carry through with this. I also don't know how you can sell it to your father when it was a freebie in the first place; come on, that's pretty tight thing to do between family
JB
To make it clear, I'd send her a letter clearly explaining that since you haven't heard from her for some time, and that she hasn't paid, her iBook will be donated to a person in need (ie = you!!!). If you do not hear from her by a certain date you will carry through with this. I also don't know how you can sell it to your father when it was a freebie in the first place; come on, that's pretty tight thing to do between family
JB