My original code shows that I was trying to create it in a family document. I have since been able to accomplish this. My task was to create some Model Text and then export to a DWG so I was able to do this in the family document only. If I needed to transfer the Model Text to the Project, then it doesn't look like that would be an easy task, if it is posible at all.
"Doing the task manually, I would bet the relating ModelText button is either disabled or invisible in this context." Not sure what you are saying here but the Model Text button in my project is available and active.
Thanks for the responses!
Joe