EXHIBIT 31.1



CERTIFICATION OF CHIEF EXECUTIVE OFFICER



AND CHIEF FINANCIAL OFFICER



I, DANIEL L. STEPHENSON, certify that:



| | 1. | I have reviewed this quarterly report on Form 10-Q of RANCON REALTY FUND IV;
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| | 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 report;
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| | 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 periods presented in this report;
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| | 4. | I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13(a)-15(e) and 15d-15(e) for the registrant and I have:
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| | a) | designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information
relating to the registrant is made known to me by others within those entities, particularly during the period in which this report is being prepared;
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| | b) | evaluated the effectiveness of the registrants disclosure controls and procedures and presented in this report my 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
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| | 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 (the
registrants fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonable likely to materially affect, the registrants internal control over financial reporting; and
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| | 5. | I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrants independent registered public accounting firm and the
audit committee of registrants board of directors (or persons performing the equivalent function):
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| | a) | all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the
registrants ability to record, process, summarize and report financial information; and
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| | 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.
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Date: August 15, 2005



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|/s/ Daniel L. Stephenson             
|Daniel L. Stephenson, General Partner
|Rancon Realty Fund IV