Banks and attorneys use it for skiptracing so, it would probably be good for you too.

Each multifamily building I have has its own bank account.

If you have a budget and allocate the costs, not sure why you would need a different bank account for each?

Now purchasing a home with cash is always good b/c obviously cash is king but also I think the part you might've missed is that, the money your utilizing on these home's won't actually be yours, but the banks or whatever institution you used to fix the home or make its value worth more.

If they're working with a bank/CU, then it's even less.

When there is a sum of money in the bank, I’d rather buy another property than pay for fire damage, and I’m happier with the insurance coverage.  

At least that avoids the banks closing costs right now.

Most jurisdictions have adopted ABA Model Rule 7.3 which makes it an ethical violation.As for the reason some clients want CPA's who have real estate investments themselves, CPA's can be experts in all kinds of things but not in all things.

The way I countered this (still not as good as buying a note with idle cash but I have checkbook control) is the money paid out from a note fund I invested in is at Axos bank.

Go to Solera National Bank or Titan bank, both of them specialize in accounts like this.