Born and raised in Lubbock, Clark fell in love with El Paso when his parents moved to the Sun City after he graduated from high school. While Clark stayed in Lubbock to attend Texas Tech University, he often came to visit his parents to enjoy the El Paso life.

After graduating in 1997, Clark spent three years working as a pharmaceutical sales representative. But deep down, Clark always knew he wanted to be a lawyer, and his journey then took him to Houston, where he graduated summa cum laude and second in his class from South Texas College of Law in 2003. During his time at South Texas, Clark dove head-first into the world of law, receiving the Garland Walker and Liz Parham Matthews Scholarship and participating in the South Texas Law Review and moot court competitions. Before graduating, Clark was voted Outstanding Male Graduate by the Student Bar Association.

After law school, Clark began his legal practice working at a large firm in Houston. There, he and the firm represented insurance companies and large corporations against injury claims. This was the first time that Clark was introduced to the realities that people were dealing with in these cases.