Our Team

Margo Ahern Fox

Attorney & Counselor at Law

Board Certified in Family Law & Mediator

Margo Ahern Fox is Board Certified in Family Law, practicing law for over 21 years in Williamson & Travis counties. She began her practice in civil litigation, but quickly developed a passion for Family Law.  Having built a dedicated team who recognize the uniqueness of every case and client, Fox Law excels at listening to a client’s circumstances; his or her immediate needs and long-term wishes; and then works to find creative solutions for accomplishing the best outcome for each client. While Margo is skilled in the art of negotiation and conflict resolution, she is also an experienced litigator in both bench trials and jury trials.

Board Certified in Family Law by the Texas Board of Legal Specialization, Margo primarily represents clients with cases involving:

  • Divorce, including complex estate, high-asset cases
  • Child Custody (conservatorship, possession, child support)
  • Modifications (conservatorship, possession, child support, spousal maintenance)
  • Enforcement Actions (parental rights, possession, child support, property division)
  • Grandparent, Step-parent, and Non-parent Rights
  • Adoption / Step-parent adoptions
  • Jury Trials

In addition to litigating cases, she practices Collaborative Law, a solution-oriented alternative to the traditional divorce process.

Margo is also an experienced mediator, providing conflict resolution services to cases involving divorce, modification of parental rights, possession, child support, and enforcement actions.

Margo lives in Round Rock, Texas with her husband and their two children.  Outside of the office, she devotes her time to family and her church community.

Bernadette Olvera

Senior Paralegal

Bernadette is the senior paralegal for Fox Law. Bernadette has assisted with complex family law cases both inside and outside of the courtroom since February of 2006. She began her career assisting attorney, Angela Davis and has worked for Margo Fox for over 16 years. A skilled and experienced paralegal, Bernadette is passionate about the legal profession and helping families navigate difficult family law situations.

Bernadette graduated from Virginia College of Austin where she received her Associates of Applied Science in Paralegal Studies degree in June of 2006.

Bernadette was born in Austin, Texas and has been married to her husband for 22 years.  Her husband is retired from the United States Army and they have five beautiful children, 3 boys and 2 girls. During her spare time, she enjoys spending time with her children, especially at the baseball fields.

Valerie Valentour


Beginning her internship with Fox Law in January of 2022, Valerie then refused to leave. She graduated from Austin Community College where she received her Associates of Applied Science in Paralegal Studies degree in May of 2022.

Valerie is passionate about helping others find their footing during the trials and tribulations that come with family law issues. As a budding paralegal, Valerie is eager and ready to “get her hands dirty” and enjoys the various aspects of the legal system touched on within family law.

Outside of work, Valerie enjoys spending time with her partner and their Pembroke Corgi, Hermes. The three love to take road trips, go camping and hiking, and cook together.

Kathleen Burnett


Beginning her internship with Fox Law in January of 2022, Kathleen is a Pre-law Intern from Southwestern University.  Kathleen relocated to Texas from Ontario Canada and plans to complete law school and practice family and education law.

Kathleen is dedicated to helping navigate the difficult process of divorce and the challenges that come with family law issues.  Being a divorcee herself, she knows first-hand how difficult it can be for families.  Kathleen enjoys the supportive atmosphere of Fox Law and feels it’s her purpose to help others through the process of divorce in as kind of a manner as possible – always looking for ways both sides can remain as amicable as possible, finding kind ways for parties to co-parent and work together, and keeping the goal of what is best for the family at the heart of the resolution.

Outside of work, Kathleen enjoys spending time with her four children, riding her horses, and going for a jog with her chocolate lab, Charlie!

Paralegal Interns

Fox Law is committed to growing the next generation of paralegals and legal assistants. By partnering with local colleges, such as Southwestern University and Austin Community College, we are proud to facilitate the development of fledgling paralegals. Our paid internship program offers patient support in a positive learning environment, allowing budding paralegals to hone the skills and knowledge they’ve accumulated at college with practical workplace experience.

Fox Law hosts interns during the fall and spring semesters. If interested, please send an email to us at admin@foxlawtexas.com.