Company: RFMZ
Filing Date: 2025-05-21
Form Type: 424B5
Source: 0001398344-25-009954
Chunk: 6

Company: RiverNorth Flexible Municipal Income Fund II, Inc.
Filing Date: 2025-05-21
Form: 424B5
Chunk 6
---
                    | 28 |

| v |

| DIVIDEND REINVESTMENT PLAN                                                              | 30 |
| DESCRIPTION OF THE FUND’S SECURITIES                                                    | 30 |
| CERTAIN PROVISIONS OF THE FUND’S CHARTER AND BYLAWS AND OF MARYLAND LAW                 | 34 |
| REPURCHASE OF SHARES                                                                    | 41 |
| RIGHTS OFFERINGS                                                                        | 41 |
| CONVERSION TO OPEN-END FUND                                                             | 41 |
| LIMITED TERM AND ELIGIBLE TENDER OFFER                                                  | 42 |
| U.S. FEDERAL INCOME TAX MATTERS                                                         | 44 |
| CALIFORNIA TAX MATTERS                                                                  | 48 |
| PLAN OF DISTRIBUTION                                                                    | 49 |
| ADMINISTRATOR, FUND ACCOUNTANT, TRANSFER AGENT, DIVIDEND DISBURSING AGENT AND CUSTODIAN | 52 |
| LEGAL MATTERS                                                                           | 53 |
| CONTROL PERSONS                                                                         | 53 |
| ADDITIONAL INFORMATION                                                                  | 53 |
| THE FUND’S PRIVACY POLICY                                                               | 53 |
| INCORPORATION BY REFERENCE                                                              | 54 |

You should rely only on the information contained or incorporated by reference in this Prospectus Supplement. The Fund has not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. The Fund is not making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should not assume that the information provided by this Prospectus Supplement and the accompanying Prospectus is accurate as of any date other than the date on the front of this Prospectus Supplement and the accompanying Prospectus. The Fund’s business, financial condition and results of operations may have changed since that date.

| vi |

<div align='center'>CAUTIONARY NOTICE REGARDING FORWARD-LOOKING STATEMENTS</div>

This Prospectus Supplement, the
accompanying Prospectus and statement of additional information, including documents incorporated by reference, contain “forward-looking
statements.” Forward-looking statements can be identified by the words “may,” “will,” “intend,”
“expect,” “estimate,” “continue,” “plan,” “anticipate,” and similar terms
and the negative of such terms. By their nature, all forward-looking statements involve risks and uncertainties, and actual results could
differ materially from those contemplated by the forward-looking statements. Several factors that