Dec. 10 (Bloomberg) -- Inspired by a post on the website Above the Law, we asked our Bloomberg Billionaires Index colleagues to research the wealthiest lawyers in America.* None of their fortunes are from practicing law:
Robert Rowling is number 5. He briefly practiced tax law before joining his father's oil and gas company.
Number 4 is Randa Duncan Williams, daughter of oil billionaire Dan Duncan.
New York's Richard LeFrak is number 3. He went into the family real estate business after law school.
Number 2 is Richard Kinder. He practiced law in Houston, then joined his friend Ken Lay at Enron.
And number 1 is Rob Walton, chairman of Wal-Mart.
*Net worth as of November 16, 2012