take the series 3 and or register as a informational cta - if they still have that.
so if i take the series 3 exam i can legally open a live trading room for subscription based?

so if i take the series 3 exam i can legally open a live trading room for subscription based?
Basically, you are running a newsletter service for which no registration is required as long as your advises are general i.e. for all and not specific to single clients on individual portfolio basis.
It would be a good idea to check with one of the similar services that you plan to offer. They would definitely have correct inputs as they are in the middle of "real action" of providing newsletter/signal type services.
i think you find if he publishes he will have to register - he must charge a flat rate to qualify as publishing cta "i think" if it's based on percentage etc. they construe that differently. either way he has to have all the proper disclaimers and can not ever offer a live account as any proof of trading.
For only stocks, he might not need any registration. Even percentage incentive can be charged for upto 15 clients in both stocks and commodities (not sure, so correct me if wrong).