RealtyJuggler has a letter library where the templates for your letters reside. In the place of your individualized greeting is a mail merge variable %Salutation%, which is filled in when you apply the template to a specific person. For example, if you send a letter to Sam, the template might start out "Dear %Salutation%" which would be converted to "Dear Sam" when you apply that template to Sam. There are numerous mail merge variables, allowing for extensive personalization based upon name and address and much more.