08-15-11 Fiscal Affairs Committee Meeting

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To the Shareholders of Null Lairsori, P-C. and the Center for Public Company Audit Firms Peer Review Committee First Financial Bank Building 400 Pine sirew, Suite 600 AbRenl- Texas 7%01-5133 Office (32 5) 672-dOOO FAX (a25) 67Z-?049 1-800-58B-252,5 We have reviewed the syucm of quality control for the accounting and audifing practice of Null Lairson, ( ' the firm) applicable to non -SEC issuers in effect Rx the year ended Deceni.Lmcr 3 1, 200 - The Zin has informed us that it did nol audit SEC issuers for the year ended Decegilber 31, 2007 A. system ofquahty control encompmses the firm's organizational structure and the li�Aicie,, adopted and Procedures established to prcivido it with reasonable assurance of complying with profrssional standards. The elements of quality MUM] are described in tire. Stananent's Oil Quality Conn�ol Standards issued by the Anter lns:Litutc of Certified Public Accountants (tile AlCPA). 'The design of the systein, and coni.pliance with 'Lt, are tht responsibilities of the firm. Our responsibility is to "pros an opinion on tbQ design of the system, and the fir compliance with. that systems basQd oil out- review, Our review was conducted in accordance with standards established by the Peer Review Conuniftee of the Center 1 Public Company Audit Finns and included procedures to plan an(] perform the T thal are summarized in the at description of flee peer review process- Our revicw would not necessarily disclose all weaknesses 'M the iysti.na of quahty control or all instances of lack, of compliance with it since it was based on selective tests, Because there are Inherent linniations in the effectiveness of any systen of quality' control, departures from the system may occur and not lic detected. Mso, projection of arty evaluation of a systern of quality control to future poriods I.% sait-jcd to thy: risk that (fic symcni of quality` QuntrO may becorne inadequate be-cause of' chan-es In conditions, or that the degree of compliance with the policies or prucedures inay deteriorate- In out opinion, the system of quality control for the accounting and auditiiq piaetkx 4ppljckh to ibQ non -SEC imuers of Null Lairs n, P C, in effect for the year ended December 21, 2007, has been designed to zMet the Tcquirei=nls of the quality control standards for an accounting and auditing practice established by tile A.10 and was complied, with duriag the ycaT then ended to provide the firth with reasonable assurance [if Complying WiLb applicable professional siandards. DAVIS, KINARD & 01, P,C