The jury found 46-year-old Roderick Colvin guilty of second-degree murder in the strangling of Shele Covlin.
Her body was found face down in the bathtub by their 9-year-old daughter. Prosecutors said Covlin killed her and then staged the scene to look like a bathtub drowning.
It happened one day before Shele Covlin was reportedly going to cut him out of her will.
Her death was ruled accidental until her body was exhumed a year later.
Roderick Covlin was arrested and charged with murder, two months before he was set to inherit her multi-million dollar estate.
Shele Covlin, 47, was a money manager at UBS, part of a finance family in which she worked alongside her brother and father. Her 42-year-old husband, known as Rod, had been a trader and was a noted figure in the backgammon world, having helped found the U.S. Backgammon Federation.
Roderick Colvin will be sentenced April 10.
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