Mary H. Thompson

D 205.582.2765
M 205.460.5727

Mary H. Thompson

Mary Thompson advises and represents businesses, public and municipal clients, as well as non-profits and individual clients. She brings to her clients extensive experience and creative solutions to complex public and private issues. Her practice areas include municipal and public agency law, corporate law, regulatory compliance, employment law, and environmental law.

Mary is rated AV-Preeminent  by Martindale-Hubbell, the highest peer review rating for professional excellence in legal knowledge and ability, communication skills and ethical standards. She was named by bmetro Magazine as one of its Top Women Attorneys of 2015 and 2016, as well as Top Lawyers, 2016. She is listed in the American Registry’s Top 5% of Professionals.


Mary’s extensive municipal, private and public sector experience has given her a unique and sophisticated expertise in all of the State and Federal statutes and case law that impact corporate entities, public bodies and agencies on a day-to-day basis.

  • The Water Works and Sewer Board of the City of Birmingham v. Honorable Alan L. King. (Successful defense of attempt to dissolve public board).
  • Jones Brothers Paving & Contracting, Inc., v. The Water Works and Sewer Board of the City of Birmingham. (Successful defense of challenge to award of bid and contract).
  • The Water Works and Sewer Board of the City of Prichard v. Board of Water and Sewer Commissioners of the City of Mobile, 141 So. 3d 958 (Ala. 2013)(Successfully argued overturn of State Constitutional amendment to allow takeover of public water and sewer board).
  • Honorable Bernard Kincaid, as Mayor of the City of Birmingham v. The Council of the City of Birmingham, et. al. (Successful defense to challenge of $476,000,000.00 transfer of water and sewer systems).

She has been involved in all major corporate activities of her clients including, acquisitions, sales and transfers; contract review and negotiation; civil and regulatory proceedings; employment and labor relations issues; public bids and procurement issues; and day-to-day advice regarding corporate and board governance.

  • $22,500,000 sale and transfer of waste water system.
  • $2,500,000 sale and transfer of waste water system.

Mary also has significant experience in employment and labor law, and provides proactive and preventative training and guidance on a number of employment issues and laws including FMLA, ADA, ADEA, HIPAA, and Title VII matters. She also drafts and edits corporate employee handbooks and guidance manuals in these areas. Mary has successfully defended numerous charges and claims before the Equal Opportunity Employment Commission as well as Federal and appellate courts.

Mary has practiced before the Alabama Department of Environmental Management, U.S. Army Corps of Engineers, and the Alabama Surface Mining Commission in numerous environmental proceedings.  She reviews permits and site assessments, and provides advice on interpretation and compliance with environmental laws and regulations.

  • The Water Works and Sewer Board of the City of Birmingham v. Alabama Surface Mining Commission and Reed Minerals, Inc. (Successful overturn of issuance of surface mining permit on the Warrior River).
  • The Water Works and Sewer Board of the City of Birmingham v. Umicore USA, Inc., et. al. (Successful prosecution of complaint against a company who discharged chemicals into Warrior River in amounts above ADEM limits).

Bar Admissions and Education

Mary is admitted to practice before the United States Supreme Court, the United States Court of Appeals for the Eleventh Circuit, the United States District Courts for the Northern, Middle and Southern Districts of Alabama, as well as Alabama state courts. She was born in Birmingham, Alabama and received her J.D. from Cumberland School of Law at Samford University in 1992, where she was a member of The Cumberland Law Review.

Professional Associations and Community Involvement

Mary is a member of the Board of Editors of The Alabama Lawyer. She is also a member of the Birmingham Bar Association, Solo and Small Firm Section; Alabama State Bar, Labor and Employment and Solo Sections; American Bar Association, Natural Resources, Energy and Environmental Law Section. She is an active member of the American Water Works Association, and has been involved in a number of charitable and civic organizations including the Board of Directors of the Old Firehouse Shelter, United Negro College Fund Gala Committee, Zoo Gala, Governor’s Commission on Environmental Initiatives, United Way Visiting Allocation Team Member, the Junior League of Birmingham and the Birmingham Ballet Guild.