Is there a tax for recording a deed of trust modification? Yes, if the deed of trust is modified to increase the loan amount.Telephone (press 3, then 3) (TTY 711). Overview. Fairfax County Deed of Trust Form. Fill in the blank form formatted to comply with all recording and content requirements. The deed of trust is a document that says you have a loan against the property, so that won't be what they are looking for. Northern Virginia deed preparation attorney answers FAQs about property deeds. Call to schedule your consultation. A deed of trust, also called a trust deed, is the functional equivalent of a mortgage. A Virginia deed of trust transfers title of an owner's property to a trustee as security for repayment to a beneficiary who financed the real estate purchase.