Karen counseled foreign and domestic clients and trade associations on international trade regulatory matters involving the International Traffic in Arms Regulations (ITAR) and Export Administration Regulations (EAR); foreign assets controls; antidumping and countervailing duty orders; customs and import compliance; and other U.S. international trade regulations. She also advised on free trade agreements such as the North American Free Trade Agreement (NAFTA).

Karen provided comprehensive legal counsel regarding export licensing and classification, employment of foreign nationals, deemed exports, development and implementation of export compliance programs and export enforcement matters, including voluntary disclosures relating to commercial and defense articles, defense services and technical data. She also advised clients on the export control and national security implications of mergers and acquisitions, including voluntary filings before the Committee on Foreign Investment in the U.S. (CFIUS).

Moreover, Karen was involved in advising on a wide range of customs issues, such as country-of-origin/product marking, tariff classification, valuation, seizures, prior disclosures and intellectual property infringement. She represented clients, including trade associations, in antidumping and countervailing duty proceedings before the International Trade Commission (ITC) and Department of Commerce (DOC). Karen also represented clients in Section 337 investigations before the ITC.

In addition to the ITC, Karen regularly worked with the array of U.S. government agencies that regulate international trade. This included the Department of Defense (DOD); Department of State Directorate of Defense Trade Controls (DDTC); Department of Commerce International Trade Administration and Bureau of Industry and Security (BIS); Department of Homeland Security Customs & Border Protection and Immigration and Customs Enforcement (ICE), and Department of the Treasury Office of Foreign Assets Controls (OFAC).

Notably, Karen served as an educator who teaches basic and advanced level courses across the country on compliance with U.S. export control laws and regulations, such as the ITAR, EAR and OFAC.