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

1,033 Profile Views

James Kilback

Feb 02, 2026

A huge weight off my shoulders thanks to the amazing work of Brendan J. Hennessey

Just wanted to say a huge thanks to Brendan J. Hennessey and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without th...

Geraldine Deckow

Feb 02, 2026

Would recommend Brendan J. Hennessey for sure to anyone in Washington needing legal help

I've already told all my friends and family about Brendan J. Hennessey. If you need Environmental Law help in District of Columbia, they're the ones to see without any doubt. They are local experts wh...

Leticia Ward-Kunze

Feb 02, 2026

Absolutely Great! I couldn't be happier with the service from Brendan J. Hennessey

Super helpful and professional staff at Brendan J. Hennessey's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and leg...

Veronica McLaughlin

Feb 02, 2026

The absolute best in Washington for Environmental Law - and I mean that from the bottom of my heart

I was really stressed about my case in Washington, but Brendan J. Hennessey made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every...

Charles Purdy

Feb 02, 2026

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

I don't usually write reviews, but the help I got from Brendan J. Hennessey during my Environmental Law case in District of Columbia deserves to be shared. It was a messy situation, and I was getting...