For years, Dallis has been a strident veterans advocate, not only representing military veterans in the courtroom, but also publishing numerous articles and participating in speaking engagements on issues related to military policy. Most notably, her advocacy regarding the injustices of the Feres Doctrine contributed to significant changes in the rights of military members to seek compensation for injury or death caused by the negligent or wrongful acts or omissions of government employees.
Dallis helped found the Center for Law and Military Policy and was formerly on its Advisory Council. She is also the former Vice Chair of the Orange County Bar Association's Veterans Committee. In 2018, Dallis hosted a podcast titled A World Apart, which shared the stories of military veterans with a civilian audience.
Dallis graduated top of her class from the Dale E. Fowler School of Law at Chapman University, where she was the Managing Editor of the Chapman Law Review. While in law school, Dallis was on the moot court team where she consistently ranked as one of the finest appellate advocates in her class. During that time, she was also honored to intern for a Federal Judge in the Central District of California.