Our Firm

M. Mavrik Gfeller is a Dimmitt, Texas attorney and founding partner of Gfeller Joyner Edwards, PLLC, a general practice law firm serving individuals, families, farmers, ranchers, and businesses across rural Texas, New Mexico, and Arkansas. A Castro County native, Mavrik has built his practice on a simple commitment: providing capable, accessible legal counsel close to home.

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Mavrik graduated from Dimmitt High School in 2015 and earned a bachelor’s degree in political science and Spanish from Texas A&M University in 2018. His involvement in agricultural advocacy organizations at A&M sparked a lasting interest in the law and its impact on rural life. He went on to earn his law degree in 2021 from the University of North Texas at Dallas College of Law, where he served on the Board of Advocates and was a member of the Phi Delta Phi Honor Society and the American Constitution Society. Studying in downtown Dallas exposed him to a broad range of practice areas, including federal and state litigation, criminal law, and immigration law.

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Though grateful for his time in Dallas, Mavrik knew his training would be best put to use at home. While awaiting admission to the State Bar of Texas in 2021, he returned to Dimmitt to serve as an Assistant County / District Attorney, gaining valuable experience in public service and local government. He then worked as a compliance director for a private agriculture company before founding Gfeller Joyner Edwards, PLLC with partner Shelly C. Joyner, who is licensed to practice in Texas and Arkansas. In 2024, Mavrik was admitted to the State Bar of New Mexico, and together the firm’s attorneys now serve clients across all three states.

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Outside the office, Mavrik shares his family’s passion for community restoration and service. Since returning to Dimmitt, he has purchased and restored a historic hotel on the Dimmitt Square. He is a proud member of the Dimmitt Lions Club, mentors local students through the Communities in Schools Lunch Buddy program, and supports a number of other community service organizations. Mavrik also serves as a director of the UNT Dallas College of Law Alumni Association.

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Today, Mavrik’s general law practice meets the full range of legal needs in rural communities, including real estate transactions; wills, trusts, estate planning, and probate; business formation and corporate law; agricultural law and farm and ranch matters; family law and guardianships; immigration; regulatory compliance; and certain criminal defense matters. Whether you are buying land, planning your estate, starting a business, or navigating a family or immigration matter, Mavrik offers practical, personalized guidance. As a bilingual, Spanish-speaking attorney, he is committed to ensuring that every member of the communities he serves has access to quality legal representation.

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“I am proud to be home and to serve the community that raised me. Rural Texas and New Mexico are home to hardworking, genuine people, and it is an honor to be their lawyer.”

Shelly C. Joyner earned her bachelor’s degree in general studies from Dowling College. She earned her juris doctorate from UNT Dallas College of Law where she was active in advocacy activities, student government, and other student organizations. She was the school's representative to the American Bar Association.

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Originally from Memphis, Tennessee, Shelly is a “second career” lawyer after 17 years at an air freight shipping company in various positions including as a load master and Account Operations Manager. She chose to go to law school after she found herself studying law for fun as a way to unwind after a tough night on the tarmac.

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After graduation, she worked for a boutique estate planning law firm where she’d worked as a clerk during law school. There, she was able to use her contingency planning background to create custom estate plans and business formation strategies for clients. She practiced primarily in the Dallas, Tarrant, Collin, and Denton County statutory probate courts, but handled cases in counties all over Texas.

 

She has significant experience in teaching multiple aspects of the law for the general public and to students. She had a regular lecture series on Constitutional Law at a retirement community in the DFW area. She greatly enjoys judging and coaching students in their legal advocacy studies. She has handled multiple civil law cases including fraud, defamation, quiet title, and landlord tenant actions.

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Shelly is a Rotarian as well as a proud and active member of Attorneys Serving the Community. She is the recipient of the 2021 Texas Bar College Steven Condos Award for Outstanding New Member to the College. She is a member of the Pro Bono College of the State Bar of Texas, UNT Alumni Association, and is a board member of Denton City Contemporary Ballet.

 

Her primary residence is now in Hot Springs Village, Arkansas near her family, but has a secondary home in Dimmitt. 

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“I am immensely grateful to both the Hot Springs Village and Dimmitt communities for being so incredibly gracious and welcoming to me over the past few months. I’m honored to be allowed to earn their trust and help them protect their legacy with proactive legal planning.”