Fill out a Recurring Payment Form and send it to us: By mail: Attn Auto Pay Department, 300 N Field Dr., ​Lake Forest, IL 60045. Simply click the "Set up a Payment Installment Plan with IDOR" link.View and download loan printable forms including the direct payment form, loan due date change form, and skip a payment form. Kane County Mortgage Subordination Application Form. This application must be completed in order to request the subordination of a Kane County Mortgage. Payoff requests should be faxed to 847-932-8266.