EXHIBIT
31.2



CERTIFICATION
OF PRINCIPAL FINANCIAL OFFICER

REQUIRED
BY RULE 13A-14(A)/15D-14(A)

UNDER
THE SECURITIES EXCHANGE ACT OF 1934



I,
Joel Klein, certify that:



|1. | I
    have reviewed this report on Form 10-K/A of OptimumBank Holdings, Inc. (the “Company”);                                                                                                                                                                                                                                               
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|2. | Based
    on my knowledge, this 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 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. | The
    registrant’s other certifying officer and I am responsible for establishing and maintaining disclosure controls and
    procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined
    in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and have:



(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, including its consolidated subsidiary, is made known to us by
others within that entity, particularly during the period in which this report is being prepared;



(b)
Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed
under our supervision, 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;



(c)
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



(d)
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 reasonably likely to materially affect, the registrant’s internal control over financial
reporting; and



|5. | The
    registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control
    over financial reporting, to the Company’s auditors and the Audit Committee of the Company’s Board of Directors:
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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



(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.



| | /s/
    Joel Klein             
| | -------------------------------
| | Joel
    Klein                 
| | Principal
    Financial Officer
| | Date:
    July 27, 2020