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

1,028 Profile Views

Danielle Stark

Feb 02, 2026

A honest review of my experience with Brendan J. Hennessey regarding a Environmental Law matter

I was skeptical about hiring a lawyer for my Environmental Law issue in Washington, but Brendan J. Hennessey changed my mind completely. They were professional, responsive, and most importantly, they...

Jacob Hudson

Feb 02, 2026

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

Brendan J. Hennessey has been doing this since 2024, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal matters in District of Colum...

Nichole Fahey

Feb 02, 2026

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

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...

Gilbert Emmerich

Feb 02, 2026

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

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...

Nicole Gerlach

Feb 02, 2026

If you're feeling lost with a Environmental Law issue in District of Columbia, call Brendan J. Hennessey now

Going through a Environmental Law dispute is something I wouldn't wish on anyone, but having Brendan J. Hennessey by my side made it manageable. I was worried about the cost and the time it would take...