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

Contact Me

Login Required

Please login to contact this attorney

Reviews

4.5 / 5

39 Reviews

1,029 Profile Views

Jessie D'Amore

Feb 02, 2026

Five stars for the incredible team at Brendan J. Hennessey in Washington - they are amazing

Really glad I found Brendan J. Hennessey for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're...

Jenny Pouros

Feb 02, 2026

So glad I called Brendan J. Hennessey to handle my Environmental Law case in Washington

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...

Noel Roberts

Feb 02, 2026

Professional service and clear communication provided by Brendan J. Hennessey in Washington

I've worked with a few lawyers in Washington over the years, but Brendan J. Hennessey stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times....

Leah Koelpin

Feb 02, 2026

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

Short and sweet: Brendan J. Hennessey is the real deal and a true professional in the field of Environmental Law. If you're in Washington and need help with your legal issues, call them immediately. Y...

Danielle Homenick

Feb 02, 2026

Top notch experts in Washington - Brendan J. Hennessey is by far the best lawyer I've ever had

Brendan J. Hennessey is fantastic and very professional. Don't hesitate to hire them if you're in District of Columbia and need help. They really know their stuff and will go the extra mile to make su...