U.S. Attorney Barry Grissom announced Tuesday that 61-year-old Connie Edwards, of Ottawa, led a drug trafficking ring that sold drugs to a man who died in May 2009.
The man used prescription drugs and a toxic white power that he had been told was methamphetamine.
Edwards led the drug ring from November 2007 to February 2012.
Authorities began investigating Edwards in 2010 after they were told she let her tenants pay rent in pills and pay for pills with stolen goods.
Another Ottawa resident was sentenced to five years of probation and eight others are awaiting sentencing for their parts in the drug distribution.