Mark S. Ferber's questionable business dealings while he worked at Lazard Freres & Co. reached beyond his work with Massachusetts issuers and Merrill Lynch & Co. to include relationships with issuers in other states and other investment banks, according to the Massachusetts inspector general's report released last week.

The report indicates that Ferber, who is under investigation by Massachusetts and federal officials for his role as a financial adviser, took credit for fees collected by Lazard Freres on hundreds of transactions in 12 states and from three investment banks in addition to Merrill Lynch and First Albany Corp.

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