Hi Kurt,
for interoperability between packages we offer the Ultimate option (it is a variation of the Enterprise license). You can still try to load scenes exported from Maya to a Blender-based application, but such a thing is not guaranteed to work. These packages are too different, and in the future we may decide to separate these versions completely to prevent bloating of the engine run-time (especially once other packages such as Cinema 4D are supported).
As of Maya LT, it does not support Python scripting for some reason and as such exporting from it is not even possible.
Thus for best results, your friend is better to have a Maya license. Not sure if they offer multi-user licenses similarly to Verge3D Team or Enterprise.