Brendan J. Hennessey

4.5 (39 reviews )

Washington District of Columbia United States

Environmental Law

Recognized in Ones to Watch since 2024

202-663-8000 Website

About Brendan

Brendan J. Hennessey is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law.Brendan J., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brendan J. is held by other top lawyers in the same geographic and legal practice area.

Brendan J. Hennessey is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law.

Brendan J., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brendan J. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Environmental Law

Education

Georgetown University

Awards & Recognition

Recognized: Environmental Law

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Reviews

4.5 / 5

39 Reviews

1,026 Profile Views

Ross Lind

Feb 02, 2026

Great people who truly care at Brendan J. Hennessey - the best legal team in District of Columbia

Everyone at Brendan J. Hennessey's office in Washington was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never fe...

Ralph Friesen

Feb 02, 2026

I was completely overwhelmed until I found Brendan J. Hennessey for my Environmental Law case

Last year, I found myself in a really difficult spot with a Environmental Law problem in Washington. I had no idea where to start and was honestly terrified of the process. Brendan J. Hennessey was re...

Sonya Wilkinson

Feb 02, 2026

A very good experience overall with the entire team at Brendan J. Hennessey's legal practice

I appreciate how Brendan J. Hennessey handled my case. No fluff, just straight to the point and very effective representation for my Environmental Law matter. They are obviously very experienced and k...

Luther Vandervort

Feb 02, 2026

So happy with the results of my case thanks to the hard work of Brendan J. Hennessey and staff

Honestly, I can't thank Brendan J. Hennessey enough for everything they've done for me. They really know their stuff when it comes to Environmental Law and it shows in the results. 10/10 would recomme...

Marlene Hartmann

Feb 02, 2026

A very good experience overall with the entire team at Brendan J. Hennessey's legal practice

It's hard finding a reliable lawyer these days, but Brendan J. Hennessey in Washington is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, res...