Company: RFMZ
Filing Date: 2025-08-26
Form Type: DEF 14A
Source: 0001398344-25-016671
Chunk: 4

Company: RiverNorth Flexible Municipal Income Fund II, Inc.
Filing Date: 2025-08-26
Form: DEF 14A
Chunk 4
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 each Fund as 
 outlined below:                                                            |

| a. | For  
 OPP: |

| ‒ | to                                                                         
 elect two (2) Class II Directors by all stockholders, voting together; and |

| ‒ | to                                                         
 elect one (1) Class III Director by Preferred Shares only. |

| b. | For  
 RIV: |

| ‒ | to                                                                         
 elect two (2) Class II Directors by all stockholders, voting together; and |

| ‒ | to                                                         
 elect one (1) Class III Director by Preferred Shares only. |

| c. | For                                                                      
 RSF, to elect two (2) Class II Directors and one (1) Class III Director. |

| d. | For                                                                      
 RMI, to elect two (2) Class II Directors and one (1) Class III Director. |

| e. | For                                                                      
 RMM, to elect two (2) Class II Directors and one (1) Class III Director. |

| f. | For                                                                       
 RMMZ, to elect two (2) Class II Directors and one (1) Class III Director. |

| g. | For                                                                      
 RFM, to elect two (2) Class II Directors and one (1) Class III Director. |

| h. | For                                                                       
 RFMZ, to elect two (2) Class II Directors and one (1) Class III Director. |

<div align='center'>The Board of each Fund unanimously recommends that stockholders vote for the election of the applicable nominees.

1</div>

I encourage you to exercise your rights in governing the Funds by voting on the proposals. Your vote is important.

Whether or not you expect to attend the Meeting, it is important that your shares be represented. Your immediate response will help reduce the need for the Fund to conduct additional proxy solicitations. Please review the proxy statement and then vote by mail as soon as possible. If you vote by mail, please sign and return all of the proxy cards included in this package. If you have any questions regarding the proposals or the voting process, please call Computershare toll-free at (866) 963-5819.

| Sincerely,                     |
| /s/ Marcus L. Collins          |
| Marcus L. Collins              |
| Secretary and Chief Compliance 
 Officer of each Fund           |

<div align='center'>2

SUMMARY OF IMPORTANT INFORMATION CONTAINED
IN THIS PROXY STATEMENT</div>

| Q. | Why