Client servicing (or lack of) on the side, are fees negotiable at all once this milestone is crossed?
Already have this - does not make much of a difference. I am looking to negotiate rates and have a key account manager of some sort. One point of contact.
Robinhood offers preferential treatment with only $1 balance. You pay $zero in commissions even without negotiating. IB will tell you flat out that their commissions are non-negotiable, even via a key account manager. And usually it’s the commissions that matter, not your balance. But in the past I found you could open a new IB account via an introducing broker like LightSpeed. They offer IB/TWS platform as an affiliate and with lower commissions, and you sign up via IB website but with an affiliate code / co-branding, though I’m not sure who then does your clearing and provides statements, whether IB or LightSpeed. You could try exploring that route though.
Of course you want lower Commissions, but far more money can be made (or not lost) with good customer service.