Diagnose 2018 Chevy Colorado Engine Failure

I'm seeking a skilled mechanic to diagnose a complete engine failure on my 2018 Chevy Colorado. The engine suddenly stopped working, and I need expert help to determine the cause and provide a report so I can go back to the auto dealer through the Ohio Attorney General... (Budget: $250 - $750 USD, Jobs: Automotive, Automotive Engineering, Mechanical Engineering)