Attorneys for Raimond and Harron did not immediately return telephone messages seeking comment.
The case was thrown out in 2009 when a federal judge ruled that the statute of limitations had expired. But a federal appeals court in Virginia reinstated it the following year.
The verdict marked the second time this year that attorneys have been convicted for committing fraud during asbestos lawsuits. Mississippi lawyers William Guy and Thomas Brock had sued Montreal-based Canadian National Railway Co., or CN, on behalf of nearly 170 former employees who claimed asbestos made them sick. The railroad company later sued, claiming the lawyers knew that at least two of their clients lied about being involved in an earlier asbestos case.