If I set up my bank account with the Parent Series LLC EIN in the state in which I live, is the Parent Series LLC considered doing business in that state and must register?

The bank may require the Parent Series LLC to be registered in the State if you go to a Big Box Bank, but if you go to a Credit Union or smaller bank they may not require registration. There is no legal requirement to have an LLC registered in the state where you open the account. We have a relationship with a bank and you are able to open an account remotely, without ever stepping into their branch, and has a great online platform for internet banking.