Agreement for Billing and Collection of Installments of Assessments. Beginning on the effective date of this Agreement and continuing until the Agreement is terminated as provided below, City authorizes the County exclusively, acting through the Travis County Tax Assessor-Collector (the “Tax Assessor-Collector”) and the Travis County Attorney (the “County Attorney”), to bill and collect the annual installments of the Assessments and to represent City for all purposes related to the billing and collection of such installments, except as stated below. The County, acting through the Tax Assessor-Collector, agrees to perform for City all of the duties of City related to the billing and collection of the installments provided in the assessment plan and Texas law.