Department profile
Haynes and Boone, LLP

Environment: Mainly Transactional

USA Guide 2026 : Texas

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Haynes and Boone, LLP

Rankings

Chambers Review

Provided by Chambers

Environment: Mainly Transactional - Texas

Band 2

What the Team is Known For
Haynes and Boone, LLP has a highly regarded team that regularly advises on regulatory concerns and major transactions. The firm serves a client base drawn from a range of industries including energy, financial services, manufacturing, retail and chemicals. The team has particular expertise in site clean-up issues in relation to the Texas Superfund law.
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Work Highlights

Provided by Chambers

  • Haynes and Boone represented Military Highway Water Supply Corporation in a toxic tort suit whereby over 500 plaintiffs alleged environmental damage, personal injury and other claims related to groundwater contamination.

Strengths

Provided by Chambers

  • The team offers superior knowledge and work ethic combined with significant experience in environmental litigation.

    Environment: Mainly Transactional respondentUSA

  • The attorneys at Haynes & Boone have strong technical competence.

    Environment: Mainly Transactional respondentUSA

  • They are excellent in every facet.

    Environment: Mainly Transactional respondentUSA

Notable Practitioners

Provided by Chambers

  • Jeff Civins
    Jeff Civins

    Jeff Civins

    Jeff Civins has over four decades of experience advising on regulatory issues and transactional risks.

    • Jeff is a good critical thinker who effectively evaluates the issues.

      Environment: Mainly Transactional respondentUSA
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  • Mary S Mendoza
    Mary S Mendoza

    Mary S Mendoza

    Mary Mendoza has a reputable environmental practice that covers the full spectrum of matters faced by clients in transactions, litigation and regulatory proceedings.

    • Mary is top-notch. Her wide level of knowledge and experience with environmental matters and M&A gives her the ability to provide efficient and effective advice.

      Environment: Mainly Transactional respondentUSA

    • Mary Mendoza is thorough, smart and provides clients with good counsel. She is good at adapting and working through various challenges.

      Environment: Mainly Transactional respondentUSA

    • Mary is outstanding.

      Environment: Mainly Transactional respondentUSA
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  • John R Eldridge
    John R Eldridge

    John R Eldridge

    John Eldridge has extensive experience handling environmental litigation and regulatory matters. He is knowledgeable of Superfund issues, toxic tort litigation and contamination work.

    • John Eldridge is fantastic.

      Environment: Mainly Transactional respondentUSA
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  • Michael Mazzone
    Michael Mazzone

    Michael Mazzone

    Michael Mazzone has an established environmental practice advising large companies on contamination and toxic tort matters. He is particularly noted for his representation of energy sector clients.

    • Michael is a creative lawyer and very good in front of a judge and jury. He's a team player, skilled attorney and a good legal thinker.

      Environment: Mainly Transactional respondentUSA
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Ranked Individuals at Haynes and Boone, LLP (6)

Texas

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