A trustee is a third-party person or entity responsible for acting as an impartial administrator in a non-judicial foreclosure. They are supposed to be fair and not partial to the buyer or seller. Some states even have laws that attempt to ensure that trustees are impartial, rather than partial to the lender or seller. Quite often the trustee is the title company. If the buyer defaults on the loan, the trustee is responsible for selling the property, paying the remainder of the loan, and distributing any profit. Since terms can be costly in the long run, you'll benefit from contacting a real estate attorney to help you ensure your paperwork is correct.