See AR 25-50 typically military font is Arial 12. While having multiple fonts may look strange or potentially portray the counselor in a less than professional light having different fonts would not invalidate the counseling session.
EXTRACT AR 25-50
1–17. Type fonts and sizes
When creating official correspondence, use type fonts and sizes that make the correspondence easy to read and understand. The following guidelines will provide the best results:
a. A font with a point size of 12 is recommended.
b. Preferred type font is Arial.
c. Unusual type styles, such as Script, will not be used in official correspondence