Marvin Kirsner, Greenberg Traurig shareholder Quill v. North Dakota, Quill Quill South Dakota v. Wayfair Quill Quill Wayfair Wayfair Quill Quill Wayfair Quill Quill Quill Quill Quill Quill Wayfair Quill Quill Wayfair Quill Wayfair Quill Marvin A. Kirsner is a shareholder in Greenberg Traurig's Boca Raton office where his primary areas of practice deal with corporate, transactional and industry specific tax issues. He serves as the co-chair of the state and local tax (SALT) practice.