There's no need to hire an attorney nor accountant until I return from Initial Training. Early mistakes can be costly. Be sure to have a professional involved before you sign a check to your franchisor. If you buy a franchise, use their system. If you insist on doing it your way, you may violate your agreement and be terminated.
All franchise systems are about the same.
Therefore, the biggest with the lowest price should be my choice. Each system has a culture of its own. Meet with the franchisor and meet or talk to several franchisees to see how you'll fit in. When you buy a franchise, your success is assured. Any new business venture involves risk.