Markus received both his law and undergraduate degrees from Case Western Reserve University. During his undergraduate education, Markus was a member of the Pi Sigma Alpha honor society and received his Bachelor's Degree in political science with honors. After serving in the Finnish Defense Forces, Markus went on to attain his law degree, a time during which he became the first student from his school to study abroad in China, where he attended Shanghai's Fudan University and wrote about the changing nature of the nation's employment laws.
Markus is admitted to practice law in the courts of Ohio, the District of Columbia, and the federal court for the Northern District of Ohio.