David Butowsky and seven colleagues who, as a group specialize in mutual fund law, changed firms last month, moving to the New York office of Mayer, Brown & Platt of Chicago.

The move was part of an effort to increase the size of Butowsky's group and expand the services it offers clients, Butowsky said last week.

Butowsky, 62, had been with Gordon Altman Butowsky Weitzen Shalov & Wein of New York for 24 years. Butowsky's group left Gordon Altman on July 9 and started with Mayer Brown July 12.

A frequent speaker at mutual fund regulatory conferences, Butowsky is a former chief enforcement lawyer for what is now the SEC's Division of Investment Management.

Butowsky's group has a client list that includes firms such as Morgan Stanley Dean Witter & Co. of New York, OppenheimerFunds of New York, and the INVESCO Funds Group of Denver, Colo. The clients are remaining with Butowsky and his group, Butowsky said. A representative from Gordon Altman did not return a call seeking comment.

Jonathan Asperger, director of marketing and communications for Mayer Brown, said the addition of Butowsky and his colleagues is part of an effort by the firm to build its investment management practice. That group has 16 lawyers with the addition of Butowsky and his colleagues, Asperger said.

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