I don't think having a pro account will necessarily "grow" your business. 

I do typically recommend individual bank accounts for each cell but I see some variance on this and you can sometimes forego individual bank accounts in favor of just a single bank account in the series LLC as long as you have strong bookkeeping that meticulously separates income, expenses, etc. of each cell (e.g. by using a classing or similar bookkeeping system).It is important to note, however, that TN has a franchise tax that requires careful structuring to avoid by ensuring that the entity structure qualifies for the FONCE (Family-Owned Non-Corporate Entities) exemption.

Zelle is offered for business accounts, we use it for multiple accounts.

Dear Beneficiary,I wish to inform you that your compensation and settlement funds/payment total sum of $8.5 million dollars has been deposited in this bank by the United Nations and the Africa's Fund settlement Committee (AFSC), we have been instructed to release this funds to you as soon as possible and after our meeting today we have agreed to pay you via online bank transfer by opening an offshore account in your name in this bank, after that we will credit your total funds into your offshore account and send the login details to you.Get back to us as soon as possible for the offshore account opening form.Kind RegardsMr.

Basically, these accounts let your investments grow tax-deferred—or tax-free if it’s a Roth—so you get to keep more of what you earn.A good place to start is by opening the account with a custodian or provider, and it’s worth chatting with a financial advisor or even a life insurance agent to make sure it’s set up the right way.

Should we make the transition now of wait it January 1st (to help with keeping the tax accounting clear?

@Lauren ThompsonReach out to a few of the accountants here on BP and see who you connect with.Consider working with your accountant remotely to expand your options.I would also recommend looking for an accountant willing to work with you throughout the year.

Quote from @Alda Watlington: I have a property that I deeded to my S-Corp, my accountant didn't advised an LLC.

I was thinking of using apartments.com and linking it to my baselane bank account, would that work?

That being said, Fidelity already manages our mutual funds and retirement accounts so we don't need fund-specific management, just general oversight and portfolio-balancing advice based on the risks and amounts of those accounts.