Why electronic fax instead of faxing using a good old 'All-in-one' fax/printer/scanner machine?

Multiple methods of contacting the owner of the site (E-mail address, electronic form, mail, phone, fax) must be available from the home page and be easily accessible from other pages of the site.

Buyer sends signed contract by fax and email and the seller send original contract any facsimile or electronic copies, shall be considered as the original.