Telephone: 205-716-5241
Facsimile: 205-716-5389

2001 Park Place North
Suite 700
Birmingham, Alabama 35203-4804

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Diane Babb Maughan

Diane Maughan is a partner in the Birmingham office and serves on the firm’s Management Committee. Mrs. Maughan litigates in state and federal courts at both the trial and appellate levels, and she also represents clients in arbitrations, administrative proceedings, and matters pending before the Trademark Trial and Appeal Board.

Mrs. Maughan’s business litigation practice has encompassed matters involving breach of contract, breach of fiduciary duty, trademark infringement, fraud, qui tam, products liability, and partnership disputes. Her practice also includes the representation of commercial property owners, landlords, and tenants in litigation and arbitration proceedings involving contract and lease disputes, condemnation, property damage, flooding, and environmental contamination claims. She has handled cases for clients in a variety of industries, including commercial real estate, transportation, health care, home security, retail, and manufacturing.

Mrs. Maughan has extensive experience in appellate work and has successfully argued appeals before the Alabama Supreme Court and the United States Court of Appeals for the Eleventh Circuit. Prior to joining Cabaniss Johnston, she served as a law clerk to the Honorable Perry O. Hooper, Sr., Chief Justice of the Supreme Court of Alabama.

Mrs. Maughan obtained a Bachelor of Arts, magna cum laude, in Political Science and Environmental Studies from Baylor University in Waco, Texas, where she was inducted into Phi Beta Kappa. She subsequently graduated, summa cum laude, from the University of Alabama School of Law, where she served on the Managing Board of the Alabama Law Review, was inducted into the Order of the Coif, was a Hugo Black Scholar, and received the Dean M. Leigh Harrison Award for graduating in the Top 5% of the class.


Author, “A Conversation with Judge Annemarie Axon” Alabama Defense Lawyers Association Journal, Fall 2019.

Author, “12 Jurors and the Internet,” Birmingham Bar Association Bulletin, Summer 2010.

Author, “Amendments to the Alabama Rules of Civil Procedure:  Electronic Discovery and Inadvertent Production of Privileged Documents” Birmingham Bar Association Bulletin, Spring 2010.

Author, “Take Caution When Representing Clients Across State Lines: The Services Provided May Constitute The Unauthorized Practice of Law,” 50 Ala. L. Rev. 535 (1999).

Professional Associations:

Alabama Defense Lawyers Association, Publications Chair for the Women in the Law Committee

Birmingham Bar Association, Member of the Court Liaison Committee

Defense Research Institute


Alabama State Bar

Honors and Awards:

Birmingham Magazine’s 2019 Top Attorneys in Birmingham, Intellectual Property and Appellate Law

B-Metro’s Top Lawyers, 2016 through 2019

B-Metro’s Top Women Lawyers, 2015 through 2019

Super Lawyers’ Alabama Rising Stars, 2011 through 2014

NOTICE. Although we would like to hear from you, we cannot represent you until we know that doing so will not create a conflict of interest. Also, we cannot treat unsolicited information as confidential. Accordingly, please do not send us any information about any matter that may involve you until you receive a written statement from us that we represent you (an ‘engagement letter’).

To initiate a possible representation, call the telephone number located under the attorney’s photo. He or she will determine if any conflict exists, and, if not, put you in touch with an appropriate lawyer. When you receive an engagement letter from that lawyer, you will be our client, and we may exchange information freely.

Areas of Practice:

  • Business & Commercial Litigation
  • Commercial Real Estate and Real Property Litigation
  • Trademarks
  • Appellate
  • Health Care


  • J.D., summa cum laude, University of Alabama School of Law, 1999
    • Alabama Law Review, Managing Board
    • Dean M. Leigh Harrison Award
    • Order of the Coif
    • Hugo L. Black Scholar
    • Bench and Bar Legal Honor Society
  • B.A., magna cum laude, Baylor University, 1996
    • Phi Beta Kappa

Admitted to Practice:

  • Alabama State Bar (1999)
  • All Alabama U.S. District Courts
  • Eleventh Circuit Court of Appeals