William L. Hagan III

William L. Hagan III is an experienced legal professional known for handling complex cases across multiple practice areas. He represents clients in family law, personal injury, criminal defense, and business law at The Collierville Law Firm. His career began with federal criminal defense, where he developed strong litigation skills. Over time, he expanded his focus to civil matters, helping individuals and businesses resolve disputes efficiently while protecting their rights and pursuing fair outcomes in challenging legal situations.

William earned an honors degree, B.B.A. in Finance, from the University of Memphis before pursuing his legal education. He then obtained his J.D. from the University of Memphis Law School in 1991. His academic background provided a strong foundation in financial and legal principles. This combination of education enables him to analyze cases carefully, understand complex financial issues, and deliver well-informed legal strategies tailored to each client’s specific needs across a wide range of cases.

William has built a long-standing career spanning more than three decades. He has played a key role in founding and developing successful law practices, including Hall & Hagan and Hagan & Patterson. As the owner of his firm, he focuses on providing direct, personal legal services. His approach emphasizes clear communication, careful case preparation, and strong advocacy, helping clients navigate legal challenges with confidence and clarity throughout every stage of their case.

William L. Hagan III is recognized for maintaining high ethical standards and professional integrity. He has earned a strong peer review rating, reflecting his commitment to quality representation. He works closely with clients and remains accessible throughout the legal process. His goal is to achieve fair and timely results while protecting client interests. Through dedicated advocacy and practical solutions, he continues to support individuals and families facing serious legal issues across his service areas and needs.

Law Office Affiliations

• Member, The Collierville Law Firm
• Member, Tennessee Bar Association
• Member, American Association for Justice
• Member, Tennessee Association of Criminal Defense Lawyers

Licensed State

• Tennessee

Education

• University of Memphis Law School
  Juris Doctor (JD)
• University of Memphis
  Bachelor of Business Administration (BBA)

Awards & Badges