<SEC-DOCUMENT>0001752724-19-004316.txt : 20190212
<SEC-HEADER>0001752724-19-004316.hdr.sgml : 20190212
<ACCEPTANCE-DATETIME>20190212111256
ACCESSION NUMBER:		0001752724-19-004316
CONFORMED SUBMISSION TYPE:	N-CEN
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20181130
FILED AS OF DATE:		20190212
DATE AS OF CHANGE:		20190212
EFFECTIVENESS DATE:		20190212

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Flaherty & Crumrine PREFERRED INCOME OPPORTUNITY FUND INC
		CENTRAL INDEX KEY:			0000882071
		IRS NUMBER:				954355600
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		N-CEN
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-06495
		FILM NUMBER:		19588879

	BUSINESS ADDRESS:	
		STREET 1:		301 E COLORADO BLVD STE 720
		STREET 2:		C/O FLAHERTY & CRUMRINE INC
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91101
		BUSINESS PHONE:		(626) 795-7300

	MAIL ADDRESS:	
		STREET 1:		301 COLORADO BLVD STE 720
		STREET 2:		C/O FLAHERTY & CRUMRINE INC
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PREFERRED INCOME OPPORTUNITY FUND INC
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
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<HTML><HEAD>
<TITLE>Form 8-K</TITLE>
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 <BODY BGCOLOR="WHITE">

 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Report of Independent Registered Public Accounting Firm </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">To the Shareholders and Board of Directors for </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Flaherty&nbsp;&amp; Crumrine Preferred Income Opportunity Fund Incorporated: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In planning and performing our audit of the financial statements of Flaherty&nbsp;&amp; Crumrine Preferred Income Opportunity Fund Incorporated (the
&#147;Fund&#148;), as of and for the year ended November&nbsp;30, 2018, in accordance with the standards of the Public Company Accounting Oversight Board (United States), we considered the Fund&#146;s internal control over financial reporting,
including controls over safeguarding securities, as a basis for designing our auditing procedures for the purpose of expressing our opinion on the financial statements and to comply with the requirements of Form
<FONT STYLE="white-space:nowrap">N-CEN,</FONT> but not for the purpose of expressing an opinion on the effectiveness of the Fund&#146;s internal control over financial reporting. Accordingly, we express no such opinion. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Management of the Fund is responsible for establishing and maintaining effective internal control over financial reporting. In fulfilling this responsibility,
estimates and judgments by management are required to assess the expected benefits and related costs of controls. A fund&#146;s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability
of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A fund&#146;s internal control over financial reporting includes those policies and procedures that
(1)&nbsp;pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the funds; (2)&nbsp;provide reasonable assurance that transactions are recorded as necessary
to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the funds are being made only in accordance with authorizations of management and directors of the
funds; and (3)&nbsp;provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of a fund&#146;s assets that could have a material effect on the financial statements. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">A deficiency in internal control over financial reporting exists when the design or operation of a control does not allow management or employees, in the
normal course of performing their assigned functions, to prevent or detect misstatements on a timely basis. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a
reasonable possibility that a material misstatement of the Funds&#146; annual or interim financial statements will not be prevented or detected on a timely basis. </P>

<p Style='page-break-before:always'>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Our consideration of the Fund&#146;s internal control over financial reporting was for the limited purpose
described in the first paragraph and would not necessarily disclose all deficiencies in internal control that might be material weaknesses under standards established by the Public Company Accounting Oversight Board (United States). However, we
noted no deficiencies in the Fund&#146;s internal control over financial reporting and its operation, including controls over safeguarding securities, that we consider to be a material weakness as defined above as of November&nbsp;30, 2018. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This report is intended solely for the information and use of management and the Board of Directors of the Fund and the Securities and Exchange Commission and
is not intended to be and should not be used by anyone other than these specified parties. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">/s/ KPMG LLP</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Boston, Massachusetts</P></TD></TR>
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<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">January&nbsp;22, 2019</P></TD></TR>
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