As more states legalize medical marijuana, there’s one stage in the process nobody wants to talk about: The part where people still have to break the law. After growers obtain licenses, plan for security and build facilities, they then must obtain their first seeds or cuttings — while regulators turn a blind eye. “It has to be hush-hush,” said Bradley Peter Vallerius, an attorney focused on the emerging industry in Illinois. “I’ve seen the moment where the client realizes this is …