Robinhood classified me as a Pattern Day Trader (PDT). If I switch to TD Ameritrade, will my 90 day ban follow me?
Worried that if I make a trade with TD Ameritrade then I try to sell it will immediately block me. I don't have $25,000.
The PDT designation should not follow you across brokerages. Many traders utilize this fact by opening accounts with multiple brokerages; so they can complete multiple day trades across their accounts without triggering the PDT designation in any one account (for accounts valued under $25000).
If for some reason TD Ameritrade does transfer the designation for you, you should be able to remove the designation by making your account a cash account.