Our Team
Savanna R. Griffith
Managing Attorney
Savanna Griffith builds estate plans that protect her clients' families long after they're gone. Her interest in helping older adults goes back to her childhood, when she volunteered in nursing homes. Since then, she has guided multiple generations of families through estate planning and probate. She practices with the knowledge, dedication, and work ethic passed down from her grandfather, firm founder Tommy Griffith.
Savanna graduated magna cum laude from Texas A&M University with a degree in psychology and earned her law degree from Baylor Law School. At Baylor she served as President of the Student Bar Association and sharpened her advocacy skills in mock trial competitions.
Savanna lives on the family ranch with her husband and their two daughters, in a home that has been in the family for generations and that they renovated together. On any given day you might find her mucking the cattle pen or in a suit in the courtroom, and she’s equally at home in both. A black belt in taekwondo who competed in the Junior Olympics, she brings that same discipline and competitive spirit to her practice. She is a zealous advocate and a compassionate counselor for every client she serves.
Savanna was part of the first class of the Dallas Probate American Inn of Court. Its probate judges and estate planning attorneys meet regularly to learn from one another, mentor newer lawyers, and give back to the community.
Email: savanna@griffithlawtx.com
Thomas N. “Tommy” Griffith (
1930-2025)
Founder of Griffith Law Firm
Tommy Griffith opened Duncanville’s first law office in 1957, when the town was still small enough that everyone knew everyone. His family moved to Duncanville in 1938, and he graduated from Duncanville High School in 1947. He attended The University of Texas, where his law studies were interrupted by the Korean War. As a first lieutenant, he oversaw the first officer prisoner-of-war exchange. He came home, finished law school in 1955, and was admitted to the State Bar of Texas that September.
In 1960, he and his father built the North Main Street building where the firm still practices today. For nearly seven decades he helped Duncanville families with wills, estate planning, probate, and real estate, and he served twenty-two years as the city’s first municipal judge. He kept his law license active until the very end, at ninety-five.
Outside the office, Tommy was a cattleman, a gardener, a Lion, a Mason, and a charter member of First Baptist Church of Duncanville. He loved cooking for Dodie, his wife of sixty-seven years. He passed away peacefully at home on December 2, 2025, surrounded by family.
He taught his granddaughter, Savanna, everything he knew about serving clients with honesty and care, and Griffith Law Firm carries on his work today.
Staff
Saif A. Castaneda
Law Clerk
Saif (pronounced “Safe”) joined Griffith Law Firm after graduating from UNT Dallas College of Law. He grew up near Houston as the son of first-generation immigrants and learned early to stand up for people who are overlooked or treated unfairly, a conviction that has shaped everything he’s done since.
Saif earned his bachelor’s and master’s degrees from Texas A&M University, where he led his outfit in the Corps of Cadets and competed on the taekwondo team, which is where he met Savanna. Before law school, he taught high school in East Texas, helping students who never pictured themselves in college believe they could get there, and he built his district’s online learning program during the pandemic. Most recently, he served at the Smith County District Attorney’s Office.
At the firm, Saif works alongside Savanna, helping clients through intake, document preparation, and will signings. At home on the family ranch, he keeps a pair of muddy boots by the door, ready to help a neighbor at a moment’s notice. He once even jumped into an iced-over pond during a winter freeze to rescue two drowning cows.
Email: saif@griffithlawtx.com
Holly Griffith
Office Manager and Legal Assistant
Holly has been part of Griffith Law Firm for more than 25 years, most of them alongside founder Tommy Griffith. A 1984 graduate of Duncanville High School, she knows this community and many of the families we serve.
Holly is usually the first person clients talk to, and she stays with them every step of the way. She schedules consultations and signings, gathers the information and documents we need, prepares wills, trusts, and probate paperwork for attorney review, and keeps clients updated so no one is left wondering where things stand. After decades in estate planning and probate, she knows how stressful these matters can feel, and she’s passionate about making the process clear, organized, and as easy as possible.
Outside the office, Holly loves reading, game nights with friends, and helping host a local Mahjong league. Her favorite title of all is “GG,” short for Grandmother Griffith, which is what her grandkids call her.
Email: holly@griffithlawtx.com