Letter Agreement between ISB Financial Corp. and W. Richard Summerwill



 EXHIBIT 10.25 
 September 11, 2007 
 Mr. W. Richard Summerwill 
 Chairman of the Board 
 ISB Financial Corp. 
 102 S. Clinton St. 
 Iowa City, Iowa 52244 
 Dear Mr. Summerwill: 
 As you know, ISB Financial Corp.
(“ISBF”) has entered into an Agreement and Plan of Merger (the “Merger Agreement”) with MidWestOne Financial Group, Inc. (“MWO”) with respect to the proposed transaction (the “Merger”) whereby MWO will be
merged with and into ISBF. Among the conditions of the Merger is that you and Charlie Howard of MWO, execute and deliver to ISBF and MWO, respectively, a letter of understanding as described in Section 7.15 of the Merger Agreement. 

Accordingly, in consideration for proceeding with the actions contemplated by the Merger Agreement, ISBF requests your signature below and subsequent
delivery of this letter of understanding to ISBF, to evidence confirmation of your understanding of and agreement to the following terms: 
  

	 	•	 	 You shall deliver to ISBF, or its successor, your resignation from all of the officer positions you hold with ISBF and any subsidiaries immediately following
consummation of the Merger (the “Effective Time”), subject to your acceptance of the separate proposal (outlined below) for continued service as a non-executive employee director following the Effective Time. 



 

	 	•	 	 You will not be treated as terminated from employment and shall not be eligible for severance benefits under any severance plans or arrangements of ISBF or the
successor company. 


 ISBF and MWO recognize the value that your continued participation with our combined companies will
bring. To that end, the combined entity is very much interested in your agreement to serve in the position of Non-Executive Chairman, on the following terms: 
  

	 	•	 	 Serve as a member of each of the boards of directors of the successor’s holding company (subject to future elections of such company’s shareholders) and
the combined bank for a three (3) year term; and commencing as of the Effective Time, being appointed as the Chairman of the respective boards; 









 Mr. W. Richard Summerwill 
 September 11, 2007 
 Page 2 
  

	 	•	 	 The Chairman role shall include involvement with strategic planning, market expansion, community relations and communications, investor relations, acquisitions,
corporate governance, board relations and assistance with the new company becoming publicly traded, each as determined by the board and other such roles and responsibilities as may reasonably requested by the board; 


  

	 	•	 	 Non-officer, active employee role: The Chairman role will not be as an officer of the successor entity or of any of its subsidiaries but shall be treated as a
continuation of the employee/employer relationship with the successor company and/or subsidiary bank, as applicable, that is at will and subject to termination by either party at anytime and for any reason; provided that any termination of
your employment by the successor company shall require the requisite vote of the board of directors applicable to the appointment or removal of the Chairman. All compensation paid as an employee shall be reflected on an IRS Form W-2;



  

	 	•	 	 Annual salary rate of $80,000 per year, with no right to receive cash based director fees during any period of employment; 


  

	 	•	 	 Future equity incentives shall be at the sole discretion of the board of directors of the successor company, it being intended that you will be entitled to receive
any equity-based compensation payable to the directors; 


  

	 	•	 	 Participation as an employee in employee benefit plans, including the group healthcare plans through the successor company’s plans on the same basis as all
other full-time employees while serving as an active employee of the company or the bank, subject to all terms, conditions and limitations of such plans, as may be in effect from time to time. Following your active employment, and for as long as you
are eligible and elect to participate in the Iowa Bankers Association benefit plans as a current or former director of the company (with respect to supplemental coverage), the company will reimburse you for a portion of the cost of such insurance,
with the company’s portion of the cost capped at the portion of the cost of the premium paid by the company for then active employees; 


  

	 	•	 	 Continued use of your existing company auto with expense reimbursement for initial three (3) year term; and 


  

	 	•	 	 Reasonable office space shall be provided during the initial three (3) year term as Chairman of the Board at the company’s main office location in Iowa
City, Iowa. 


 Please acknowledge your acceptance of this letter and its terms, and your agreement to execute and deliver
such agreements consistent with the terms hereof as may be requested and to take such actions as described above by signing both copies of this letter and returning one copy to ISBF. 








	
	Very truly yours,
	
	ISB Financial Corp.
	
	/S/ CHARLES N. FUNK
	Charles N. Funk
	President 


 Acknowledged and agreed to 
 this 11th day of
September, 2007. 
  

	
	/S/ W. RICHARD SUMMERWILL
	W. Richard Summerwill

 (Signature Page to Summerwill Letter Agreement)