Do you think this issue is specific to banking services or what do you think is the root cause?

The liquidity or funds for the purchase can be in your new entity or your personal bank acct.

Yes, you can have a baselane account(s) and/or link to external banks.

Get a copy.2) Bring your trust documents to any bank and open a trust account in the name of the plan with you and your spouse as the trustees.3) Transfer your existing 401(k) funds into the checking account associated with your 401(k) trust.

@Brice Alef-Torrisi putting each property in its own LLC is usually overkill.Getting a bank account for each LLC is typically something you need to do to avoid "piercing of the LLC corporate veil" (actually depends on tax selection you made for LLC), but is also overkill.You haven't indicated how you are holding the deed for the latest property.If in your name or same LLC, you don't need a separate bank account.If in separate LLC, you can create a Master LLC, have each property LLC hire the Master LLC to manage their affairs, and just get a bank account for Master LLC.This is an opinion, not advice, so lookup CPA Frank Alcini in Troy for expert advice.

deposited in a demand deposit account?  

this is where the gray area comes in with accounting.

I have totally given up on Quickbooks though it remains the best accounting software for the non CPA type 

If you already have existing property and transfer property to an LLC, then it could trigger the due on sale clause the bank.

Do you know if there is a service, monthly or annual fee for opening one of these accounts?