I would start with state wildlife agency for information. I'm sure there will be insurance rquirements that you will need to look into. I know my boat ins states that it is for private recreational use, so to upgrade that to a "for hire" status will need to be done. There may be a statwide license to guide, or it may be that you can sign on with a marina, and they carry the license with you as an employee. Good luck to you....maybe you should offer a Crappie.com discount?