Ask HN: Any advice to someone who wants to start a home-based tutoring service?

We will hire people to tutor in-home. Everything will be handled online with our website and our target market are well-off families. What do we need to know?<p>Do we need to register our business? How do we beat our competition? What are the drawbacks of accepting credit card payments? Can we also make the parent of our "tutees" sign contracts? How can I prevent my tutors from starting their own tutorial business and getting my clients? What marketing actions should we take in order to properly connect to our market? What policies to practice in order to keep our tutors safe? How does CRM work with these type of businesses?