In some cases, we may require documents specified here. Trusted mortgage specialist.We will walk you through the entire process. The mission of the Collin Central Appraisal District is to appraise all property in the Collin County Appraisal District at market value equally and uniformly. Copy of government-issued identification (Driver's License or Passport) for each applicant; Most recent pay stubs covering 30 days of income for each applicant. What to expect, when to discharge your mortgage, how much it costs and where to get more information. This page allows you to download Discharge Authority Forms or Release of Security Forms for a number of major banks, lenders and non-banks. Office Phone:501-603-3815. Cell Phone:501-743-8037. 1. 1. Enter the name and contact information of the mortgage servicer.