 Under Guerrero, the board of trustees filed a lawsuit against Governor Benigno Fitial's asministration in a dispute over employer contributions.A court later ruled that the government of the Northern Mariana Islands owed the NMI Retirement Fund $231.6 million in employer contributions.Guerrero is also credited with leading the Retirement Fund to suspend payments to delinquent members, halting payments to people who were adopted as beneficiaries after a worker had retired, and suspending refund payments under his leadership.