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alex A.webp

Alex Adewunmi

Associate Attorney

Alexander ("Alex") has recently joined the law firm O'Hanlon, Demerath & Castillo, bringing with him a wealth of experience and a passion for excellence in legal practice. Before joining ODC, Alex founded and led the Adewunmi Law Firm, PLLC, distinguishing himself as a skilled litigator and trusted advisor in the heart of Dallas, Texas. His legal expertise spans complex commercial litigation, arbitration, and a plethora of civil disputes, where he has adeptly represented clients in cases related to breach of contract, fraud, tortious interference, breach of fiduciary duty, and real estate disputes, both residential and commercial. Alex's commitment to justice is also evident in his work in family law matters, where he provides compassionate and robust representation.

Alex's legal acumen extends to supporting small businesses and entrepreneurs, guiding them through entity formation, crafting business operating agreements, and navigating employment and contractor agreements, ensuring their legal foundations are solid and poised for success.

In recognition of his exceptional contributions to the legal community and his unwavering commitment to promoting diversity within the profession, Alex was honored with inclusion in The National Black Lawyers Top 40 Under 40 in 2020. This accolade underscores his role as a champion of African American legal excellence.

A proud alumnus of the University of North Texas Dallas College of Law, the nation's leading law school for diversity, Alex has consistently demonstrated his dedication to legal scholarship and advocacy. During his tenure at UNT Dallas, he served as a Staff Editor for the College of Law Review and Accessible Law Journal, led as President of the Board of Advocates, and gained valuable experience as a law clerk in the 101st and 193rd Civil District Courts. His prowess in legal argumentation was showcased in national Mock Trial competitions, where he earned the titles of Best Advocate and Finalist in the 2018 National Employment & Labor Law Mock Trial Competition.

Practice Areas at O'Hanlon, Demerath & Castillo:

  • Family Law

  • Business Law and Litigation

  • Entity Formation and Start-Up Business Counsel


  • J.D., University of North Texas Dallas College of Law, 2018

  • B.S., Texas Christian University, 2014

Professional Memberships:

  • Dallas Bar Association

  • Tarrant County Bar Association

  • Tarrant County Family Law Bar Association

  • Dallas Association of Young Lawyers

  • State Bar of Texas, Real Estate, Probate, & Trust Law Section

  • State Bar of Texas, Solo and Small Firm Section

Bar Admissions:

  • Texas

Professional Awards/Honors:

  • The National Black Lawyers, Top 40 Under 40, 2020-2021, 2021-2022

  • Texas Christian University, Young Chancellor's Advisory Council, 2020-current

  • Texas Rising Stars, Thomson Reuters, 2022-2023

At O'Hanlon, Demerath & Castillo, Alex is eager to leverage his extensive legal experience, leadership skills, and commitment to excellence to deliver outstanding results for his clients and contribute to the firm's legacy of success.

Alex Adewunmi: TeamMember
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