Sorry I'm with Robert. Just because we have a cnc doesn't mean that everything is going to be easy. You do have to trial and error.
I stand by my inkscape suggestion. It does a great job of making SVG text... but some fonts just don't work with carving period.
Inventables has selected a few fonts that work and that are not copyrighted or at least they got permission to use.
I do understand inventables stance of not wanting the headache of hearing about "this text won't carve... why?". That's where I still like the idea of an "advanced users" opt in area that unlocks almost everything.