Mostly people with minimal RE experience are adding a single ADU and they often make that choice based on cash flow without taking into account the negative equity position.  

Your bank account will thank you!"

Acquisition people, asset managers, finance/accounting roles are all needed to run properties, even if the property management is outsourced.  

It may be that they are underwriting the property at a significantly different valuation than what you are using or that they feel that you or the deal is excessively risky.Great advice here, and a good HML will have an account rep or someone to communicate with you through the process so that you know. 

I'm unclear what you mean by upgrading your accounting for the syndication.We use multifamily property management software.

If I scale to a point where I no longer have time and have to outsource, that line item is already accounted for and the property will still be profitable.  

My question relates to when and how to structure a business account.

You can create an account and look around for free so you can see if it will work for you. 

We have retirement accounts, a small private stock market account, and an emergency fund. 

Do you see why we accountants say "likely" and "possibly" in every paragraph we write?