GHLC, the dominant player in the residential mortgage sector with a market share of just over 40% and five million loans originated, has already mandated Credit Suisse First Boston to structure the deal, but will select a lead manager to underwrite the deal on March 7. The banks bidding for the mandate include CSFB, Goldman Sachs, Daiwa Securities, Tokyo Mitsubishi, Salomon Smith Barney, Nomura, Mizuho Securities, Merrill Lynch, Morgan Stanley Dean Witter and Lehman Brothers.