The operator's track record may not align with your goals (you are long term cash flow play, they are sell and redeploy, or vice versa).  

I set up virtual accounts for each property that is linked to my main operating account.

Several things to consider: 1) One of the main purposes of segmenting your assets into separate LLC's is so that your personal net worth or equity in other business ventures or properties isn't exposed, so unless you have a high net worth or a lot of equity in a property, it might not be worth bothering going the separate LLC route, especially when it restricts your financing of the property.  2) Most any commercial financing you get from a local bank for a small property is going to have recourse anyhow and require that you sign a personal guarantee, so you're still personally on the hook to the bank even in the case of a commercial loan.  3) If you're a newer investor and buying a deal that's tight on cash flow, or if you don't have a ton of cash sitting in the bank already, your greatest risk factor as an investor is your investment failing economically due to poor financing terms or not operating the investment properly, not because you get sued. 

You can open a business bank account, sign contracts, and handle expenses under the company’s name, keeping everything clean and organized.

Aside from the Debt-to-income ratio and risk benefits you've already mentioned, it also just helps keep everything organized.

After operational expenses, there might be minimal tax.

But like with all laws unless its enforced and has some teeth wholesalers wont give a rip they will just break the law and keep going until they are stopped.I wonder what companies like Great Western are  going to do. they have a big philly operation that deals in the low income areas where a lot of these deals are done. 

Also having a higher proportion of revenue generated through the residential component of the building does make financing easier. (3) The exception to the 80% rule I abide by is when the commercial space is leased to a credit tenant with a proven & sustainable business  or where the space presents the opportunity to attract a neighborhood amenity F&B operator (this is most beneficial in instances where you have a larger localized portfolio where these commercial tenants can positively impact the value of your overall residential portfolio).

To keep everything organized, I swear by Asana for task management; it keeps me on track.

I also wouldn't be involved in day-to-day operations onsite.