4m) Approval of Second Amendment to Agreement 15-056 with Thomson Reuters/Aumentum in the Amount of $693,864 Related to the Acquisition of County-Wide Property Tax Software System - Addition of a Public Access Portal; Authorize the Chief Executive Officer or her/his designee to Execute any and all Documents in relation to the Transaction; and Authorize the Chief Executive Officer or her/his designee to Sign Any Future Amendments to the Agreement That Do Not Alter the Fiscal Aspect of the Thomson Reuters/Aumentum Master Agreement for Licensed Software, Hardware, and Services