For Collin County Motor Vehicle Transactions. This video will show you how to fill out a Telecloud LOA.For more information, go to our FERPA page. Students are required to provide their address, email, and phone number at time of application AND within 10 days of any change. I recently received a letter from Collin County appraisal district requiring me to reapply for my homestead exemption. Attorneys and self-represented litigants are required to notify the District. Clerk of any change in address, email, telephone, or fax number.