[E&Y Logo]
R e p o r t o f I n d e p e n d e n t R e g i s t e r e d P u b l i c A c c o u n t i n g F i r m
Regulation AB Item 1122 Master Servicing Platform
Board of Directors
Aurora Loan Services LLC
We have examined management's assertion, included in the accompanying Certification Regarding
Compliance with Applicable Servicing Criteria (the
"Management Certification"), that Aurora Loan Services
LLC (the
"Company"), a wholly -owned subsidiary of Lehman Brothers Bank FSB, complied with the
servicing criteria set forth in Item 1122 (d) of the Securities and Exchange Commission's Regulation AB for
the residential mortgage loan master servicing compliance platform (the
"Regulation AB Item 1122 Master
Servicing Platform"), as defined in the Management Certification, as of and for the year ended
December 31,
2007, except for criteria 1122(d)(1)(ii), 1122(d)(1)(iii), 1122(d)(2)(vi), 1122(d)(3)(i)(C), 1122(d)(4)(i),
1122(d)(4)(ii), 1122(d)(4)(iv), 1122(d)(4)(v), 1122(d)(4)(vii) through 1122(d)(4)(xiii), and 1122(d)(4)(xv),
which
the
Company has determined are not applicable to the activities performed by them with respect to the
Regulation AB Item 1122 Master Servicing Platform covered by this report. Management is responsible for
the Company's compliance with the applicable servicing criteria. Our responsibility is to express an opinion
on management's assertion about
the Company's compliance with the applicable servicing criteria based on
our examination.
Our examination was conducted in accordance with attestation standards established by the American
Institute of Certified Public Accountants, as adopted by the Public Company Accounting Oversight Board
(United States) and, accordingly, included examining, on a test basis, evidence about
the Company's
compliance with the applicable servicing criteria and performing such other procedures as we considered
necessary in the circumstances. Our examination included testing of less than all of the individual asset
backed transactions and securities that comprise the Regulation AB Item 1122 Master Servicing Platform,
testing of less than all of the servicing activities related to the Regulation AB Item 1122 Master Servicing
Platform, and determining whether
the
Company processed those selected transactions and performed those
selected activities in compliance with the applicable servicing criteria. Furthermore, our procedures were
limited to the selected transactions and servicing activities performed by
the Company during the period
covered by this report. Our procedures were not designed to determine whether errors may have occurred
either prior to or subsequent to our tests that may have affected the balances or amounts calculated or reported
b y
the Company during the period covered by this report for the selected transactions or any other
transactions. We believe that our examination provides a reasonable basis for our opinion. Our examination
does not provide a legal determination on
the
Company's compliance with the servicing criteria.