Aden attorney works for a big firm, AB&C. Aden has a medical malpractice case for which he must hire an expert witness to prove soft tissue injury. Aden finds emma expert and tells her he is willing to pay her standard fee of $300 an hour for her review of the case. He is further willing to pay an extra $0100 an hour over her usual fee is she finds and testifies that soft tissue injury is present. Aden tells emma that her services are invaluable if she finds soft tissue damage and that is why is is offering a larger fee. Is aden breaching any ethical duties in his offer to emma? explain.