JOYNER + JOYNER, P.C. - Key Persons


Jessica Joyner

Job Titles:
  • Attorney
  • Member of the Texas State Bar
Jessica Joyner received her Juris Doctor degree from St. Mary's School of Law in 2007. While attending law school, Jessica participated in law journal and competed on the national level in many trial competitions throughout the United States. During that time, she was named Don Hunt Regional Champion of the National Trial Competition and received an award of outstanding achievement in advocacy. Throughout her career, Jessica has dedicated herself to remaining on the cutting edge of DWI defense. She has completed the NHTSA/IACP Standardized Field Sobriety Practitioner Course, Instructor Course and DRE Overview Course. Jessica has tried numerous DWI cases to juries all over Texas, obtaining numerous not guilty verdicts and dismissals in both breath test and blood test cases. She has also taught at many legal educational seminars on the topic of DWI defense. Jessica is a member of the Texas State Bar and is admitted to practice before the United States District Court for the Western District of Texas.

Mr. Jason R. Joyner

Job Titles:
  • Attorney and Counselor at Law
Mr. Jason R. Joyner is a criminal defense lawyer and was born and raised in San Antonio, Texas. He graduated from Southwestern University in Georgetown, Texas with a B.A. in Business. While he was an undergraduate student, Mr. Joyner spent his summers working in San Antonio as an intern for a prominent local attorney. During this time, Mr. Joyner learned first hand the intricacies of criminal defense practice while laying the foundation for his ability to deliver quality legal services for his clients. After his graduation from Southwestern, Mr. Joyner moved to East Lansing, Michigan, where he attended law school at Michigan State University. While in law school, Jason completed an externship at the Bexar County Courthouse. During this externship, he worked closely with various San Antonio judges and their staff. This opportunity gave him extensive insight and experience on how criminal cases are handled in Bexar County and throughout the State of Texas. Mr. Joyner lives in San Antonio and is an avid Spurs fan.

Mr. Jonathan K. Joyner

Job Titles:
  • Attorney and Counselor at Law
Mr. Jonathan K. Joyner was born and raised in San Antonio, Texas. He graduated from Southwestern University in Georgetown, Texas with a B.A. in Business. While at Southwestern University, Jonathan obtained a summer internship in San Antonio working for a San Antonio criminal defense firm. During those summers, Jonathan learned how to be an effective criminal defense attorney, how to aggressively advocate on behalf of his clients and how to deliver quality legal services. Jonathan also learned how important it was to have open lines of communication with his clients and to this day, all of his clients have direct access to him. Upon completing his undergraduate studies, Jonathan moved to East Lansing, Michigan where he attended Michigan State University College of Law. Anyone facing an allegation that they have violated a criminal law needs a strong and knowledgeable criminal defense attorney they can respect and trust. Money, jail time and even someone's life may be on the line and a criminal lawyer has to be trusted to fight hard for his client's best interests. Since moving back to San Antonio, Jonathan has represented thousands of individuals charged with various criminal offenses. Jonathan wants to be the criminal defense attorney who advocates on your behalf.

Roberto Yamanaka

Job Titles:
  • Lawyer