When there is no realtor involved, it could be fine, but it could be disguising the fact that there would be fraud going on or that the purchase price doesn't equal market value (i.e. two related people selling a property one to another at an inflated value, etc.)

If you have a good cleaner, your business is going to have the ability to be successful.

But I want to learn how to invest in real estate as a business.

STR Achievement Unlocked: I have a business partner who has an AI bot filling last minute vacancies on FB and, because sometimes it was too late for the canceling guest to get a refund, he sometimes runs occupancy above 100%. 

It has a tenant facing portal where tenants can pay their rent, which the app deposits into our account the next business day (even though ACH payments do not regularly settle for 4 days!).  

Secondly, getting involved and getting around people actually doing deals that you can bounce situations off of will help tremendously as you're on this journey.

But my business partner who has a sales background has brought in $25M. 

I have completed renovation on one side and running a small business out of that side.

I don't have any business accounts to keep separate, should I?

No refi involved on first mortgage and still at a nice cltv, 85%.