**Exhibit31.2**

### **CERTIFICATIONS**

I, Lisa J. Maxwell,Principal Financial and Accounting Officer, certify that:

1.               I have reviewed thisquarterly report on Form 10-Q of FirstBank Financial Services, Inc. (the “Company”);

2.               Based on my knowledge, thisreport does not contain any untrue statement of a material fact or omit tostate a material fact necessary to make the statements made, in light of thecircumstances under which such statements were made, not misleading withrespect to the period covered by this quarterly report;

3.               Based on my knowledge, theconsolidated financial statements, and other financial information included inthis quarterly report, fairly present in all material respects the financialcondition, results of operations, and cash flows of the Company as of, and for,the periods presented in this quarterly report;

4.               The Company’s othercertifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) for the Company and have:

(a)                                  Designed suchdisclosure controls and procedures, or caused such disclosure controls andprocedures to be designed under our supervision, to ensure that materialinformation relating to the Company is made known to us by others within thisentity, particularly during the period in which this report is being prepared;

(b)                                 Evaluated theeffectiveness of the Company’s disclosure controls and procedures and presentedin this report our conclusions about the effectiveness of the disclosurecontrols and procedures, as of the end of the period covered by this reportbased on such evaluation; and

(c)                                  Disclosed inthis report any change in the Company’s internal control over financialreporting that occurred during the Company’s most recent fiscal quarter thathas materially affected, or is reasonably likely to materially affect, theCompany’s internal control over financial reporting; and

5.               The Company’s othercertifying officer and I have disclosed, based on our most recent evaluation ofinternal control over financial reporting, to the Company’s auditors and theaudit committee of the Company’s board of directors:

(a)                               All significantdeficiencies and material weaknesses in the design or operation of internalcontrol over financial reporting which are reasonably likely to adverselyaffect the Company’s ability to record, process, summarize and report financialinformation; and

(b)                                 Any fraud,whether or not material, that involves management or other employees who have asignificant role in the Company’s internal control over financial reporting.

6.               The Company’s othercertifying officer and I have indicated in this quarterly report whether or notthere were significant changes in internal controls or in other factors thatcould significantly affect internal controls subsequent to the date of theirevaluation, including any corrective actions with regard to significantdeficiencies and material weaknesses.
| August 13, 2007 | /s/ Lisa J.  Maxwell                  |
|-----------------|---------------------------------------|
|            | Lisa J. Maxwell,  Principal Financial |
|            | and Accounting  Officer               |
|            | (Principal  Financial Officer)        |

 

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