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Cassidy Viser


Cassidy Viser's Headshot
Cassidy Viser's Headshot

Cassidy Viser is an accomplished scholar and aggressive advocate on behalf of the injured and grieving. As both a legal scholar and a trial attorney, she provides her clients with all the tools they need to get justice and rebuild their lives. Despite working at the Department of Justice, the Securities and Exchange Commission, and other vital institutions, it’s her work at Arnold & Itkin that she considers the most impactful.

“You’re given a unique responsibility as a trial lawyer to be the voice for people in the worst times of their lives. At Arnold & Itkin, winning a case isn’t just a career victory—first and foremost it’s a personal vindication for our clients. That’s what drives me every day to work as hard as I can.”



Cassidy is a fierce advocate, a decorated scholar, and an aggressive trial lawyer. She has always been passionate about seeking justice for those who need it, and she refuses to back down from a challenge. At Arnold & Itkin, Cassidy’s practice encompasses a wide range of matters, from complex personal injury cases to offshore and industrial litigation.

Cassidy received her bachelor's degree from Cornell University, a master's degree from Harvard University, and a J.D. from Georgetown University, earning honors at every institution. She was Executive Editor on the Georgetown Journal on Poverty Law & Policy, where she published a note titled “The Economics of Injustice: Stratification in Medical Malpractice Claims by Poor and Vulnerable Patients.”

Cassidy has considerable experience advocating for the unseen and underserved. During her schooling, she worked at the United Nations Economic and Social Commission for Western Asia, the Securities and Exchange Commission, the Department of Justice, the Senate Judiciary Committee, and the Senate Rules Committee—to name only a few of her professional roles.

Her most important role has been at Arnold & Itkin, where she honed her skills in her final years of law school. Long before taking the bar exam, Cassidy worked on record-breaking cases. Today, she’s proud of the role she serves in her clients’ lives, helping the injured and grieving rebuild their lives and get justice from those who wronged them.

Our Clients Are More Than Cases

Stories About the Lives That We've Helped

  • “I told him, ‘Kurt you’re my hero. You’re my knight in shining armor.’”
    Mildred Solar Cortes El Faro Widow
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  • “They're fighting for these little people that can’t handle themselves when a giant comes. Almost like David and Goliath. It’s an amazing thing to see.”
    Shawn Thomas Workplace Explosion Victim
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  • “I really feel like Arnold & Itkin brought justice to my family. Not only my family but many other families. It was just unreal how tirelessly they worked.”
    Terry Yount Father of Risperdal Victim
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  • “They told me they were pretty much going to handle everything, I wasn’t going to have to worry about anything—which they held up to that.”
    Tinisha Thomas El Faro Widow
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  • “Sometimes I would think about the level of stress that I had going through this whole thing, and I think about Arnold & Itkin taking on that stress for me. They picked it up and they ran with it. They have allowed me to close that chapter and feel good about it and move forward without looking back with regrets. I feel great.”
    Denver & Jodie Colter Gas Line Explosion Victims
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  • “Whatever I needed, they gave it to me, they made sure I had it. Just one call and they were there to do it.”
    Desmond Calloway Pipeline Fire Victim
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  • “This firm has impacted every aspect of my life, past, present, future. They pulled off some miracles. They stood up for me when nobody else would.”
    Christopher Devall Workplace Explosion Victim
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  • “I felt like family because they were there to listen and hear—not just brush you off because 'you're just a client.' They let me know when I met them that everything was going to be all right.”
    Veronica Sowell Workplace Explosion Victim
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  • “They were very helpful in me evolving through this tragedy, basically. The stress that I was under—they made me feel relaxed. I know that if I called them now and I needed something, they would help me get whatever I needed.”
    Donna Deason
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