Yes, offshore, but as you're US based with US clients it becomes messy. Then you would need a master/feeder and that becomes expensive fast. You have to understand the accredited investor rules, there are no workarounds.
In theory due to the rule changes, you can crowd fund investors without accreditation, but no one actually knows how, we've investigated it. You can have a few non-accredited investors, but the rules are complex, you need a good lawyer. The lower you are down the chain the greater the barrier to entry, the 'grey area' you want means you set up your own A-Z structure on the outside of the chain, that's what we have which has taken since 2011 to put it in place, and we're only just starting to activate it.
You have places like IB marketplace and social trading networks depending on the level of your target clientele, but you don't want to mix and match. Trading other peoples money is about trust and that takes time, they want to make sure you've spent capital to put in place a structure, $100,000s is really the starting point, I've spent a few $million. Looking back it probably would have been better to pay everyone off and start sooner, but I absolutely hate middlemen and pyramiding.
The system is designed in a very specific way, you get what you pay for, someone with $1mn assets is not going to be interested in someone who's spent $5,000 on a structure. Then of course you have brokerage issues as you become a professional trader. Trading other peoples money in your own fund is very satisfying, but one mistake and you'll be punished severely, if it's not watertight it's you who becomes liable.
The brick walls are there by the elites and institutions to make sure the 'undesirables' stay out, basically everyone who's not them, sure I know the ways around these coming from that environment, but there's no chance anyone is getting anywhere near that information. A fund is a lifestyle choice, you can't just set up a company and say I'll trade your money, the financial system doesn't work that way. You can try, but you'll find some unpleasant things along the way until you capitulate wishing you had never tried. Your best option is the friends and family approach until you generate capital and a track record to do it properly.