Dennis J. Quinn

4.5 (32 reviews )

Washington District of Columbia United States

Ethics and Professional Responsibility Law

Recognized in Best Attorney USA since 2021

202-310-5500 Website

About Dennis

Dennis J. Quinn is a top attorney recognized by Best Lawyers in the practice area(s) of Ethics and Professional Responsibility Law.Dennis J., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dennis J. is held by other top lawyers in the same geographic and legal practice area.

Dennis J. Quinn is a top attorney recognized by Best Lawyers in the practice area(s) of Ethics and Professional Responsibility Law.

Dennis J., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dennis J. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Ethics and Professional Responsibility Law

Education

The George Washington University

Awards & Recognition

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Reviews

4.5 / 5

32 Reviews

1,067 Profile Views

Mike Kihn

Jan 26, 2026

A huge weight off my shoulders thanks to the amazing work of Dennis J. Quinn

Dennis J. Quinn has been doing this since Recognized in Best Lawyers since 2021, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal...

Marsha McClure

Jan 26, 2026

Solid work and professional service from Dennis J. Quinn in Washington for District of Columbia residents

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

Marjorie Zulauf-Schneider

Jan 26, 2026

Professional service and clear communication provided by Dennis J. Quinn in Washington

Solid experience overall with the law firm of Dennis J. Quinn. They know Ethics and Professional Responsibility Law inside and out and gave me great advice. Very helpful and got the job done exactly a...

Georgia Hirthe

Jan 26, 2026

Simply amazing representation from Dennis J. Quinn's office during my recent legal matter

If you're looking for someone who actually cares and will fight for you, go to Dennis J. Quinn. They helped me out big time with my Ethics and Professional Responsibility Law issue and kept me informe...

Sammy Keeling

Jan 26, 2026

Outstanding experience with Dennis J. Quinn in Washington - truly the best legal team