Gutierrez pleaded not guilty to 10 charges that he used state computers and time for his private construction business, lied on workers'-compensation and financial-disclosure forms, and tapped Dann's campaign account to cover personal expenses.
Gutierrez, 51, could face a maximum of eight years in prison and $20,000 in fines.
He spoke in a firm voice when Judge Timothy S. Horton of Franklin County Common Pleas Court asked him to enter his plea to all the charges: "Not guilty."
Shortly after taking office in 2007, Dann hired Gutierrez, a Youngstown-area neighbor and family friend, to supervise his office's vehicle fleet, purchasing, mailroom, telecommunication and other support services.
Dann, Gutierrez and Dann's spokesman Leo Jennings III maintained their Youngstown-area homes while sharing a condo near Dublin that figured into the scandal that cut short Dann's career and led to the charges against Gutierrez.