Carol S. Shahmoon


B.A., Columbia University, 1992, summa cum laude, Phi Beta Kappa

J.D., Columbia Law School, 1992, Kent Scholar, Stone Scholar, Columbia Law Review



T.  1-646-517-4399

F.  1-646-880-9359

Ms. Shahmoon is an experienced litigator who has represented clients in a variety of civil cases, including commercial litigation, securities and consumer class actions, breach of contract cases, and employment discrimination claims.  A large part of her practice is devoted to representing investors in shareholder derivative suits and corporate governance matters. 


She began her career at the law firm of Cleary, Gottlieb, Steen & Hamilton in New York.  After Cleary, she worked in the legal department of Morgan Stanley & Co.  After taking time to start a family, Ms. Shahmoon joined the New York office of Chitwood Harley Harnes LLP.  In 2016, she founded CSS Legal Group PLLC, which subsequently became Shahmoon Keller.  


Ms. Shahmoon has successfully litigated a wide variety of corporate governance actions to vindicate the rights of investors and shareholders to nominate and elect directors of their choosing, obtain material information about matters on which they are being asked to vote, and receive fair value for their investment securities.   She has been appointed lead or co-lead counsel in representative and class actions on behalf of shareholders and consumers in both state and federal court.  


Ms. Shahmoon is admitted to practice in the New York state courts and in the United States District Courts for the Southern and Eastern Districts of New York.  She has also been admitted to practice for the purpose of individual cases in courts in Delaware, Florida, Massachusetts, and Maryland.