How to legally launch an ICO?

Could you please elaborate on the steps necessary to legally launch an Initial Coin Offering (ICO)? I understand that compliance with various regulations is crucial, but I'm not sure where to start. Are there any specific laws or guidelines I should be aware of, depending on the location of my business? Furthermore, what documentation or paperwork is typically required, and what agencies or organizations should I consult to ensure I'm meeting all the necessary requirements? Additionally, are there any best practices or strategies you could recommend to ensure a successful and legal ICO launch?