Is there a tax for recording a deed of trust modification? Yes, if the deed of trust is modified to increase the loan amount.The Land Records Division of the Fairfax Circuit Court is located on the third floor of the Fairfax County Courthouse at 4110 Chain Bridge Road in Suite 317. Fairfax County Deed of Trust Form. Fill in the blank form formatted to comply with all recording and content requirements. PLEASE READ BEFORE FILLING OUT ON-LINE FORMS. Adobe Reader XI is required to be able to save a filled out copy of your filing for your records. Fairfax County Trustee Deed Form. Clerks are required to verify the record created in the office from the original document or an exact paper copy until the verification process is complete. 3. Do not fill in any information on the Deed of Trust.