You don't need any code. Create
new Normal Template document and send it to your client.
A Template is a document type that creates a copy of itself when you open it.
A Normal template opens whenever you start Word, and it
includes default styles, AutoText, macros, toolbars, and other customizations that determine the basic look of your document.
Change the Normal template (Normal.dot) [
^]
Change the Normal template (Normal.dotm )[
^]
Save a Word document as a template[
^]
Using macros to set default font is a... bad idea ;(