You don’t need to “leverage my qualification”.
Start working with people. Volunteer with some friends, members at your box to get experience working on movement & mobility with people. Build credibility within the community.
Meet with the owners/coaches at boxes you want to work with. Find out if they have interest in offering a mobility class. Learn about their community. Do some drop in classes. Be around, spend time.
Spend time observing mobility classes in your area, spend time with other Movement & Mobility Specialists in your area.