|     |  |             
|---- |  | ------------
|LOGO |  | Exhibit 33.6

MANAGEMENTS ASSESSMENT OF

COMPLIANCE WITH REGULATION AB CRITERIA

Principal Real Estate Investors, LLC and Principal Global Investors, LLC, (the Assessing Parties) are responsible for assessing
compliance for the transactions listed on Attachment A for the period January 1, 2018 through December 31, 2018, (the Reporting Period) with the servicing criteria set forth in Title 17, Section 229.1122(d) of the Code of
Federal Regulations (the CFR), except for the criteria set forth in Sections 229.1122(d)(1)(ii)-(iii), 229.1122(d)(3)(i)  (iv), 229.1122(d)(4)(ix), and 229.1122(d)(4)(xv), in the CFR, which the Assessing Parties have concluded are
not applicable to the servicing of the transactions listed on Attachment A, backed by commercial mortgage loans and primarily serviced by the Assessing Parties (the Applicable Servicing Criteria).

The Assessing Parties have assessed compliance with the Applicable Servicing Criteria for the Reporting Period and have concluded that the
Assessing Parties have complied, in all material respects, with the Applicable Servicing Criteria for the transactions listed on Attachment A backed by commercial mortgages primarily serviced by the Assessing Parties.

With respect to servicing criteria 1122(d)(1)(i) and 1122(d)(4)(i) (the Criteria), the Assessing Parties have engaged various
vendors to perform certain activities required by this Criteria. The Assessing Parties have determined that none of these vendors are considered a servicer as defined in Item 1101(j) of Regulation AB, and the Assessing Parties have
elected to take responsibility for assessing compliance with the servicing criteria applicable to each vendor as permitted by Regulation AB Compliance and Disclosure Interpretations of the Division of Corporation Finance, Section 200.06,
Vendors Engaged by Servicers (C&DI 200.06). The Assessing Parties have assessed that it has policies and procedures in place designed to provide reasonable assurance that the vendors activities comply in all material respects
with the servicing criteria applicable to each vendor. The Assessing Parties are solely responsible for determining that it meets the SEC requirements to apply C&DI 200.06 for the vendors and related criterion as described herein.

Ernst & Young LLP, an independent registered public accounting firm, has issued an attestation report on the assessment of
compliance with the Applicable Servicing Criteria for the Reporting Period as set forth in this assessment.



|      |  |                                     
|----- |  | ------------------------------------
|      | 
|By:   |  | LOGO                                
|      |  | Steven Johnson                      
|      |  | Managing Director                   
|      |  | Principal Real Estate Investors, LLC
|      |  | Principal Global Investors, LLC     
|      | 
|Date: |  | February 19, 2019                   



---

LOGO

Attachment A

Commercial Mortgage Pass-Through Certificates



|                                                                                        |  |                                           |  |                                          
|--------------------------------------------------------------------------------------- |  | ----------------------------------------- |  | -----------------------------------------
|Wells Fargo Bank, National Association, as Master Servicer                             
|Series 2003-Top11 dated August 1, 2003                                                  |  | Series 2000-PRIN dated September 1, 2000  |  | Series 2001-Top3 dated July 1, 2001      
|Series 2004-Top14 dated April 1, 2004                                                   |  | Series 2003-Top12 dated October 1, 2003   |  | Series 2003-Top10 dated April 1, 2003    
|Series 2004-Top16 dated November 1, 2004                                                |  | Series 2004-Top15 dated July 1, 2004      |  | Series 2004-Top13 dated February 1, 2004 
|Series 2005-Top18 dated April 1, 2005                                                   |  | Series 2005-Top17 dated January 1, 2005   |  | Series 2004-IQ8 dated August 1, 2004     
|Series 2005 PWR10 dated December 1, 2005                                                |  | Series 2005-Top20 dated October 1, 2005   |  | Series 2005-Top19 dated July 1, 2005     
|Series 2006-Top22 dated April 1, 2006                                                   |  | Series 2006-Top21 dated January 1, 2006   |  | Series 2006-Top23 dated August 1, 2006   
|Series 2006-HQ9 dated August 1, 2006                                                    |  | Series 2006 PWR13 dated September 1, 2006 |  | Series 2006-Top24 dated October 1, 2006  
|Series 2006 PWR14 dated December 1, 2006                                                |  | Series 2007 Top25 dated January 30, 2007  |  | Series 2007 PWR15 dated March 29, 2007   
|Series 2007 Top26 dated April 18, 2007                                                  |  | Series 2011 C-2 dated March 1, 2011       |  | Series 2007 PWR18 dated December 27, 2007
|Series 2008 Top 29 dated February 29, 2008                                              |  | Series 2011 C-5 dated November 1, 2011    |  | Series 2011 C-3 dated June 1, 2011       
|Series 2011 C-4 dated August 1, 2011                                                    |  | Series 2012 C10 dated December 1, 2012    |  | Series 2012 C-8 dated August 1, 2012     
|Series 2012 C-9 dated October 1, 2012                                                   |  | Series 2013 C17 dated November 1, 2013    |  | Series 2013 C11 dated February 1, 2013   
|Series 2013 C13 dated May 1, 2013                                                       |  | Series 2015  C27 dated March 1, 2015     |  | Series 2014  C19 dated March 1, 2014    
|Series 2014  LC14 dated February 1, 2014                                               |  | Series 2017  P7 dated April 1, 2017      |  | Series 2015  P1 dated August 1, 2015    
|Series 2014  C21 dated August 1, 2014                                                  |  | Series 2016  P3 dated April 1, 2016      |  |                                          
|Series 2015  P2 dated December 1, 2015                                                 |  | Series 2016  P4 dated July 1, 2016       |  |                                          
|Series 2017  CD6 dated November 1, 2017                                                |  | Series 2017  P8 dated September 1, 2017  |  |                                          
|                                                                                        |  |                                          
|                                                                                        |  |                                           |  |                                          
|Berkadia Commercial Mortgage LLC, as Master Servicer                                   
|Series 2007 IQ-15 dated 8/23/2007                                                       |  | Series 2002 IQ -3 dated 12/01/2002        |  |                                          
|                                                                                        |  |                                          
|                                                                                        |  |                                           |  |                                          
|Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer
|Series 2016  P5 dated October 1, 2016                                                  |  | Series 2016  P6 dated December 1, 2016   |  |