Jennifer was born in Saint Louis, Missouri, in 1981. She graduated from Edwardsville High School in 1999. Jennifer then attended Washington University in Saint Louis, earning a bachelor of arts degree in biology in 2003.
Jennifer continued her education at Southern Illinois University School of Law, graduating cum laude in 2011. During law school, Jennifer was a member of the Journal of Legal Medicine and published an article concerning the need for hospitals to comply more fully with the Americans with Disabilities Act as it applies to hearing-impaired patients. She also worked in the Southern Illinois University Civil Practice Clinic, providing free legal assistance to senior citizens in the thirteen southernmost counties in Illinois. While enrolled in the clinic as a student, Jennifer received the Howard Eisenberg Client Service Award for outstanding service to the clinic clientele.
Jennifer was admitted to the Illinois Bar in November 2011. She was admitted to practice before the United States Court of Appeals for the Seventh Circuit in May 2012 and presented oral argument to the Court in November 2012. She is a member of the Illinois State Bar Association and the Madison County Bar Association