Exhibit 31-2
                                 CERTIFICATIONS

I, Thomas J. Riha, certify that:

1. I have reviewed this quarterly  report on Form 10-Q of WNC HOUSING TAX CREDIT
   FUND VI, L.P., Series 13;

2. Based on my knowledge, this   quarterly report does  not  contain  any untrue
   statement of a material fact   or omit to state a material fact  necessary to
   make the statements  made, in   light of the  circumstances  under which such
   statements  were made, not   misleading with respect to the period covered by
   this quarterly report;

3. Based  on my  knowledge,  the  financial  statements,  and  other   financial
   information included in this quarterly report, fairly present in all material
   respects the financial condition, results of operations  and  cash  flows  of
   the registrant as of, and for, the period presented in this quarterly report;

4. The   registrant's  other  certifying  officer  and I  are   responsible  for
   establishing and maintaining  disclosure  controls and procedures (as defined
   in Exchange Act Rules  13a-15(e) and  15d-15(e))  for the  registrant  and we
   have:

   (a)  Designed  such   disclosure   controls  and  procedures  to ensure  that
        material  information  relating  to   the   registrant,   including  its
        consolidated subsidiaries,  is made known to us  by  others within those
        entities,   particularly   during  the  period in which  this  quarterly
        report is being prepared;

   (b)  Evaluated  the   effectiveness of the registrant's  disclosure  controls
        and procedures  and  presented in this report our conclusions  about the
        effectiveness of  the  disclosure controls and procedures, as of the end
        of the period covered by this report based on such evaluation; and

   (c)  Disclosed  in  this  report   any  change in the  registrant's  internal
        control over  financial  reporting that occurred during the registrant's
        most  recent  fiscal  quarter  that   has   materially  affected,  or is
        reasonably  likely  to  materially  affect,  the  registrant's  internal
        control over financial reporting; and

5. The   registrant's   other  certifying officer(s) and I have disclosed, based
   on our most recent evaluation  o f internal control over financial reporting,
   to the  registrant's  auditors and the  audit  committee of the  registrant's
   board of directors (or persons performing the equivalent functions):


   (a)  All   significant  deficiencies  in  the design or operation of internal
        controls  which could  adversely  affect  the   registrant's  ability to
        record,  process,   summarize  and   report  financial   data  and  have
        identified for the  registrant's  auditors  any  material  weaknesses in
        internal controls; and

   (b)  Any  fraud,  whether or not material,  that involves management or other
        employees who have a   significant   role in the  registrant's  internal
        control over financial reporting.

Date: February 14, 2007




/s/  Thomas J. Riha
-------------------
Senior Vice-President - Chief Financial Officer of WNC & Associates, Inc.