If it is a larger bank/mortgage broker, you should be fine. 

If I were to approach a seller of a $200k home, and they had a remaining mortgage of $100k, could I get a new bank financed loan for that $100k, and have the seller finance the remaining $100k of equity to me?   

@Andrew Watson I have a similar setup - One series LLC to One bank account.

Both accounts same bank they even froze her roommates account at the same bank and he had nothing to do with real estate no existing loan family member is alive.

The problem I was having with Stessa and Rentastic is that it only tracks what’s in the bank account not what I get from the PM, so the numbers are off and I have to go in and correct it all.

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

@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.

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

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.

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