I am most beholden to you for effecting our settlement.
My most profound gratitude to you for your tireless tenacity, your steadfast determination, your exceptional intelligence and your brilliant negotiating skills. Thank you for your stellar professionalism, and for your gentle compassion regarding our physical and emotional well-being.
I promise to use this hard fought settlement money to bless the lives of others, as you have blessed mine. May all the kindness and caring you give to others everyday of your career, return to you a hundred-fold.
[A past client]