The man who masterminded an $800 million insurance scam that fleeced tens of thousands of investors in one of Florida’s all-time largest fraud schemes was sentenced Friday to 20 years in prison.

U.S. District Judge Robert Scola gave Joel Steinger, 64, credit for pleading guilty to avoid a lengthy and costly trial and said Steinger’s multiple medical problems — he appeared in court in a wheelchair, with an oxygen tank — argued against the maximum 50-year sentence sought by prosecutors.