Litigators. Problem Solvers. Trusted Advisors.

We serve as trusted advisors and problem-solvers to individuals and corporations across the United States. We pride ourselves on being generalists. We handle a wide range of subject areas, typically matters in controversy. 

We try cases; we handle appeals in state and federal courts; we represent plaintiffs and defendants in complex commercial disputes, whether the matter is negotiated to resolve the dispute or in litigation or arbitration; we provide strategic and regulatory advice; we represent parties in local, state and federal investigations and proceedings; and, in select appropriate cases, we represent plaintiffs in significant personal injury and product liability cases.  

We bring decades of experience to each case. That experience includes serving as a federal prosecutor and as counsel to a major federal agency, plus many years in major law firms. Our practice is national, advising substantial business entities and their owners in resolving high-stakes disputes before and during litigation, at trial, and on appeal.  

Why The Casper Firm?

The Casper Firm model builds upon Mr. Casper's experience as an attorney at the District of Columbia's then largest firm, where he represented the NFL Baltimore Ravens and was involved in some of Maryland’s largest civil litigation matters. As a former Assistant United States Attorney, Mr. Casper became a well-recognized trial attorney, and prosecuted several high-profile white collar fraud and public corruption cases, involving hundreds of millions of dollars. Since that time, Mr. Casper has represented individuals and businesses in a variety of cases including in high-stakes litigation across the country.

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"Ari Casper is not only an amazing attorney, he is also an honest, caring, and compassionate person. He represented me in a case involving an employment situation and he went above and beyond to help me in this very difficult, emotional time. For that I will be forever grateful."


"I have worked with Ari and am always impressed with his ability to analyze the minutia of complex legal issues while staying focused on the big picture. Ari always works to get the best possible results for his clients. Ari is one of the best malpractice and injury lawyers that I know."


"The Largest Side Airbag Verdict in History"

$14 Million in Damages

"Largest Settlement in History Against a Generic Drug Manufacturer"

$500 Million Settlement

We offer creative fee arrangements so that litigation costs are not an obstacle to your day in court. You want a real trial attorney representing you— call The Casper Firm for a free consultation.