Nope, no active licenses required since not US citizen, but have US retail broker accounts. Considering starting to trade a prop account for a firm, but gotta make sure to have all the other accounts in order once I start.
You'll need to notify the prop firm and they will want duplicate trade confirms. Assuming they allow an outside account at all. You will regret it if you circumvent their rules which kinda sounds like what you fishing for.
So, would it be right to say that, they, intentionally, made it ,,harder'' for you since you were trading someone else's capital ?
I guess it concerns the question of "security". Many brokers do not allow third-party trading. It has a seed of sence if you dig deeper