Quincy, My niece's team rented a large storage unit to practice hitting in. But, they were in Houston.
That amount of space would be ideal, but 10 feet in your garage pitching into some old carpet hanging from the ceiling works great too. She should be focusing on mechanics and throwing hard, not where the pitch is going anyway, especially in the off season.
Thanks,
For some reason I am not impressed with The Bulls/Sox Academy in Lisle so if we are going for a one on one PC, which the opinions here seem to support, we will be looking outside their organization.
Personally it is hard for me to strike a balance because my wife hates softball, not sure why. Our DD loves it.