Better yet, make a deal with the grandfather. Granddaughter inherits everything and son gets nothing. He is a failure of any species anyway. Seems like he takes full advantage of daddy's money and influence but can't do a damn thing decent himself but use the money and power to bully. The only thing decent was sowing his seed to produce such a wonderful grandchild and that was only due to the omega's effort, not his. That would be the most awesome punishment for the prick. If something happens to the grandchild then everything goes to charity and he can't do anything...
I like the way you think!
SUE HIM!!! SUE HIS ASS!!