The Melville, N.Y.-based company's request for Chapter 11 bankruptcy protection — filed in bankruptcy court in Wilmington, Del. — caps a tumultuous 10 days for what had been the nation's 10th-biggest home lender.

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And, unlike New Century and most other bankrupt lenders, American Home Mortgage was not a "subprime" lender.

American Home Mortgage joins more than 50 lenders in bankruptcy this year....