That means that you can not take the forms to the individual and mail them back. The owner must appear in person. If that person lives outside the area, they can sign at any county office. If you farm rented farms, as I do, I urge you to have your own fax machine. The price of these has gotten so low there is really no reason not to have one in your office.
Models are available that can automatically switch from voice to fax if a fax comes in.
Now that I have one, I have found many uses that I never dreamed of. If you are going to put grain under loan, be sure to seal as close to the actual bushels as possible. If you have FSA calculate from bin measurements, you will end up sealing less than the actual amount. After May 31, the excess is not eligible for LDP or loan. Since I have my own farm scales, the mistake was easily avoidable.