Exhibit 10.4(b)

FIRST AMENDMENT TO AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT

THIS FIRST AMENDMENT TO AMENDED AND RESTATED REVOLVING CREDIT AGREEMENT (this "Amendment") is made as of the
7th day of March, 2008, betweenCrystal River Capital, Inc., a Maryland corporation
("Borrower"), andBrookfield US Corporation, f/k/a Brascan (US) Corporation("Lender").

W
I T N E S
S E T H:

WHEREAS,
Borrower and Lender are parties to that certain Amended and Restated Revolving Credit Agreement dated as of November 8, 2007 (as further amended, restated, supplemented
or otherwise modified from time to time, the "Credit Agreement"; unless otherwise defined herein, all capitalized terms used in this Amendment shall
have the meanings ascribed to such terms in the Credit Agreement); and

WHEREAS,
Borrower and Lender desire to amend the Credit Agreement effective as of December 31, 2007 as hereinafter set forth;

NOW,
THEREFORE, in consideration of the premises set forth above, the terms and conditions contained herein and other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties agree as follows:

1.Amendments to the Credit Agreement.



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2.Conditions of Effectiveness.This Amendment shall become effective as of the date hereof when, and only when,
Lender shall have received:



3.Representations and Warranties of Borrower.Borrower represents and warrants as follows:



4.Reference to and Effect on the Credit Agreement and the Other Documents.



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5.Costs and Expenses.Borrower agrees to pay on demand all reasonable costs and expenses in connection with the
preparation, execution, delivery, administration, modification and amendment of this Amendment and the other instruments and documents to be delivered hereunder, including, without limitation, the
reasonable fees and out-of-pocket expenses of counsel for Lender with respect thereto and with respect to advising Lender as to its rights and responsibilities hereunder and
thereunder.

6.Governing Law.This Amendment shall be governed by and construed in accordance with the laws of the State of
New York without regard to conflict of laws principles of such state.

7.Counterparts.This Amendment may be executed by one or more of the parties hereto on any number of separate
counterparts, each of which shall be deemed an original and all of which, taken together, shall be deemed to constitute one and the same instrument. Delivery of an executed counterpart of this
Amendment by facsimile or electronic mail transmission shall be as effective as delivery of a manually executed counterpart hereof.

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IN
WITNESS WHEREOF, the parties hereto have caused their respective duly authorized officers or representatives to execute and deliver this Amendment as of the day and year first written
above.

| |  | CRYSTAL RIVER CAPITAL, INC.                              
| |  | ---------------------------------------------------------
| |  | By:                                                      
| |  | BROOKFIELD US CORPORATION, F/K/A BRASCAN (US) CORPORATION
| |  | By:                                                      

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