Michael D. Dorum's practice focuses primarily on mergers and acquisitions and securities offerings involving asset managers, broker-dealers and other financial services firms.


Mr. Dorum has represented clients in many significant U.S. and cross-border transactions, including:

  • Eurazeo S.E. in its acquisition of a 30 percent minority interest in Rhône Group in exchange for a payment in cash and in newly issued Eurazeo shares; 
  • Fortress Investment Group LLC in its acquisition by SoftBank Group Corp.; 
  • American Capital, Ltd. in the sale of its American Capital Mortgage Management, LLC unit to American Capital Agency Corp.;
  • Raymond James Financial, Inc. in the acquisition of the Private Client Services business of Deutsche Bank Securities Inc. (the legacy business of Alex. Brown, Inc.);
  • Lehman Brothers Holdings Inc. (post-bankruptcy estate) in the sale of its minority interest in D. E. Shaw & Co. to Hillspire, LLC (family office of Eric Schmidt);
  • DST Systems, Inc./ALPS Advisors in its acquisition of Red Rocks Capital, LLC;
  • John Hancock Retirement Plan Services in its acquisition of the retirement plan services business of New York Life Investment Management;
  • Credit Suisse Group AG in connection with the sale of its Customized Fund Investment Group to Grosvenor Capital Management, L.P.;
  • National Australia Bank Limited in its acquisition of a minority interest in Peridiem Global Investors;
  • Pátria Investimentos, an alternative asset management and corporate-advisory firm based in Brazil, in its sale of a 40 percent interest to Blackstone Group LP;
  • Pacific Century Group in its acquisition of the third-party asset management business of American International Group, Inc.;
  • Goldman Sachs Petershill Fund affiliates in the acquisition of interests in alternative asset management firms;
  • the Marsico management group in its leveraged acquisition of Marsico Capital Management, Inc. LLC from Bank of America;
  • Affiliated Managers Group, Inc. in the acquisition of interests in BlueMountain Capital Management and ValueAct Capital;
  • BlackRock, Inc. in its merger with the investment management business of Merrill Lynch & Co., Inc.;
  • Citigroup, Inc. in its acquisition of the private client and capital markets business of Legg Mason;
  • AQR Capital Management in its sale of a minority interest to Affiliated Managers Group, Inc.;
  • Prudential Financial Inc. in its acquisition of Prudential Investment & Securities Co., Ltd., a retail funds group based in Seoul, Korea, and of TMW Immobilien AG and its affiliates, a real estate investment adviser based in Munich and Atlanta; and
  • the equity owners of International Fund Services (N.A.), LLC in the sale of a controlling equity interest to State Street Bank and Trust Company.

Mr. Dorum’s practice also involves the structuring and documentation of complex equity arrangements and financing transactions for asset manager investment vehicles in the form of limited liability companies and limited partnerships.



  • J.D., Rutgers Law School, 1991 (Order of the Coif; Law Review, Notes and Comments Editor)
  • Rutgers Graduate School, courses in Urban Planning, 1985-1987
  • B.S., Cook College, Rutgers University, 1982


  • New York

Michael D. Dorum

Of Counsel, Financial Institutions; Mergers and Acquisitions