Quote from kungfutrader:
Wait a sub LLC. that requires a U4 and a Series 56? How is that possible?
sub-accounts are becoming close to non-existent anymore. All the private-equity structured firms are registered/in-registration-process/owned by the broker-dealer. Anyone who evens talks to someone about trading needs a 56/7 and a 24. Only clerical work is not required to register anymore. It's near impossible (and now very illegal) for the old sub-account prop deal. Be happy. the laws are to protect you and tax revenues, not the firms.
see the regulatory circular on sub-accounts here: https://www.cboe.org/publish/RegCir/RG10-101.pdf