Employment Law Questions? Ask an Employment Lawyer.
Hello and welcome. Your question is extremely general and so it's hard to provide more than a general response. That said, the laws governing sexual harassment and illegal discrimination are important to be aware of, as are the laws governing rest and lunch breaks.
The laws governing overtime and minimum wage, salary exempt classification, and permissible commission agreements are also important to know.
Should you have specific questions about any of these things, I would be happy to assist you further, I would just ask that you open a new question thread to discuss any aspect relating to the details of these laws.