Alan Keith Nelsen and Mary Alice Monteza pleaded no contest Monday in San Antonio to setting up a fake international investing firm.
Slaughter in 2009 filed a complaint about losing $150,000 to Castro International. The former Southern Mississippi standout says Nelsen and Monteza claimed his December 2008 investment grew to nearly $7.6 million over a few months, but they wouldn't give him any money.
The San Antonio Express-News reports prosecutors would recommend probation if Nelsen and Monteza repay $850,000 before sentencing in April.
Slaughter played for Jacksonville, Green Bay, Baltimore, New Orleans and San Francisco. The linebacker was released by New England in 2008.