William Valentine holds a foundation in law enforcement, having graduated from Delone Catholic High School and earned an Associate's degree in Criminal Justice. He began his career as a police officer in Thurmont, Maryland, and later served as a deputy sheriff in Garrett County. Valentine returned to police work in Westminster, Maryland, retiring as a lieutenant. He then worked as an investigator for the Frederick County State's Attorney's Office before entering politics. His professional background and leadership roles have equipped him with extensive experience in law enforcement and public service.

William Valentine combines a staunch defense of law enforcement with a surprising advocacy for natural resource preservation, suggesting an ideologically agile approach. His support for limited state government and tax reductions aligns with traditional conservative values, yet his unexpected stance on environmental regulations hints at a nuanced understanding of regional economic and ecological balances. Valentine's legislative decisions, such as opposing the Maryland Child Victims Act, reveal a calculated prioritization of law enforcement authority over broader social justice reforms. His rhetorical style likely emphasizes community safety and local control, leaving his audience curious about how he reconciles these seemingly disparate policy areas.