Michael Stein, co-founder of Executive Monetary Management LLC, a financial advisory firm whose clients included Michael Eisner, when he was chief executive of Walt Disney Co., and singer Michael Bolton, has died. He was 74.

He died Friday at NewYork-Presbyterian Hospital/Columbia University Medical Center in Manhattan, according to his wife, Eileen Stein. She said he had recently become ill.

EMM, based in Manhattan, describes itself as a full-service financial adviser, offering investment, tax and estate planning "to wealthy families, individuals and institutions" in industries including entertainment, finance and law. It has more than $2.5 billion in assets under management, said Thomas O'Brien, chief financial officer.

Stein, William Aaron and John Gold, all certified public accountants, started EMM in 1968.

In a 2002 lawsuit, Eisner and his wife, Jane, said EMM had miscalculated their California taxes for 1996 through 1999. Six months after filing, the Eisners dropped the lawsuit.

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In 2008 Bolton sued EMM, claiming that it owed him more than $5 million, according to the New York Post, which said the firm was seeking $500,000 in unpaid fees from Bolton dating to 2005. O'Brien said the Bolton case was resolved, and that neither Eisner nor Bolton is a current client.

Eileen Stein said her husband treated all clients and colleagues, famous or not, with equal respect.