At the age of 19, Troy enlisted in the U.S. Army Reserve. He deployed on combat tours to Iraq and Afghanistan, among other places. After 21 years of service, he retired with the rank of Major and as the recipient of two Bronze Star medals. Back home, Troy continued his service through law enforcement, a multi-generational tradition for his family.

In 1994, Troy began his law enforcement service with Fort Bend ISD. He spent the next twenty-six years serving Fort Bend County in various law enforcement roles. From 2004 to 2012, he served two terms as the elected Constable for Ft. Bend County Pct. 4. After two successful terms as Constable, Troy was elected as Fort Bend County Sheriff in 2012. In 2016, Troy was re-elected and completed his second term in December 2020.

In his 8 years as Sheriff, Troy maintained his fiscal conservative principles while managing the 826 staff and $79 million budget of the Fort Bend County Sheriff's Office. He created cutting edge recidivism reduction programs like HVAC and welding training programs for non-violent Fort Bend County jail inmates, at no cost to taxpayers, so the inmates had job ready skills when they were released. He used his position as Sheriff to advocate increased awareness of mental illness, even hosting large seminars. He even took steps to start a specialized mental health unit at the Sheriff's Office who responds to mental health calls. Most notably, in his eight years as Sheriff, burglaries were reduced 60%, aggravated assaults were reduced 27%, and robberies were reduced 31%.

Troy was officially sworn in as Congressman for Texas' 22nd District on January 3rd, 2021. Troy received his bachelor's degree from Liberty University and his master's degree from the University of Houston Downtown. He resides in Richmond with his wife, Jill, daughters, Jenna, Cambry, and Tori, and their four dogs Archer, Buddy, Boo, and Lulu. They worship at Faith United Methodist in Richmond.