Schwartz, a mergers and acquisitions partner with Katten Muchin Rosenman, whose work focuses on the newspaper industry.

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Peter Shea, an attorney at Katten Muchin Rosenman who specializes in these funds, reports that despite regulatory uncertainty, sponsors continue to float new exchange-traded product ideas.

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Its own former law firm, Katten Muchin Rosenman LLP, also filed suit against it last month in U.S. District Court for the Southern District of New York.

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