<p>  <br>  Ayanna Lewis-Gruss, a senior associate in the New York office, is a member of the firm's Litigation Group.  
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Ms. Lewis-Gruss focuses her practice on complex commercial litigation, with an emphasis on international arbitration and disputes involving foreign investments and insurance coverage issues.  She has represented clients in state and federal court, and before the Internal Revenue Service.  Ms. Lewis-Gruss has also represented parties in arbitrations held under the auspices of the International Chamber of Commerce and the American Arbitration Association, as well as non-administered arbitrations conducted under UNCITRAL and other rules.