Company: RFMZ
Filing Date: 2025-03-07
Form Type: N-CSRS
Source: 0001398344-25-005064
Chunk: 42

Company: RiverNorth Flexible Municipal Income Fund II, Inc.
Filing Date: 2025-03-07
Form: N-CSRS
Chunk 42
---
 semi-annual report. |

| (a)(2) | Not applicable to semi-annual report. |

| (a)(3) | The certifications of the Registrant’s Principal Executive                                                                               
 Officer and Principal Financial Officer, as required by Rule 30a-2(a) of the 1940 Act, and Section 302 of the Sarbanes-Oxley Act of 2002 
 are attached hereto as EX-99.CERT.                                                                                                       |

| (a)(4) | Not applicable. |

| (a)(5) | Not applicable. |

| (b) | The certifications of the Registrant’s Principal Executive Officer and Principal Financial Officer, as required by Rule 30a-2(b) 
 of the 1940 Act, and Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto as EX-99.906CERT.                         |

<div align='center'>SIGNATURES</div>

Pursuant to the requirements of the Securities Exchange
Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned,
thereunto duly authorized.

Registrant: RiverNorth Flexible Municipal Income Fund II, Inc.

| By:    | /s/ Patrick W. Galley                 |
| Name:  | Patrick W. Galley                     |
| Title: | President and Chief Executive Officer |
| Date:  | March 7, 2025                         |

Pursuant to the requirements of the Securities Exchange
Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant
and in the capacities and on the dates indicated.

| By:    | /s/ Patrick W. Galley                 |
| Name:  | Patrick W. Galley                     |
| Title: | President and Chief Executive Officer |
| Date:  | March 7, 2025                         |

| By:    | /s/ Jonathan M. Mohrhardt             |
| Name:  | Jonathan M. Mohrhardt                 |
| Title: | Treasurer and Chief Financial Officer |
| Date:  | March 7, 2025                         |