He co-founded Texans for Lawsuit Reform to overhaul the state's tort laws and Americans for Fair Taxation to lobby for reform to the federal tax structure.
"Leo was a gentleman and a scholar whose knowledge, wisdom and vision have been gifts to his family and friends," said Dick Trabulsi, president of Texans for Lawsuit Reform. "His contribution to his community and to public policy cannot be calculated, nor expressed adequately."
He also had a hand in creating Americans for Fair Taxation.
In 1995, Linbeck joined forces with Robert McNair, owner of the Houston Texans, and investor Jack Trotter to create a grassroots group that advocates replacing federal income tax with a national consumption tax, repealing the 16th Amendment and eliminating the Internal Revenue Service.