Phenom

[126coupe]

My great niece is 6 yrs. old. My wife and I have been tennis fans and players for most of our lives. We are sponsoring my niece in her first tennis lessons. The coaches have never seen anyone like her. Her hand - eye coordination and desire to learn are off the map. My question if when and if she goes pro my wife would more than likely be her manager and traveling companion. What is a standard percentage for managing a pro athlete? Her mother simply does not have the time to cultivate her. I am willing to sponsor her in tennis camps etc. Any contract lawyers out there?