But my mortgage banker tells me he must have the corporation's address on the preapproval letter and the seller recognizes that address.  

Not only do i appreciate these skills as a way to build wealth for me and mine, I also recognize that when we do what we do... we improve neighborhoods, and lives (hopefully) which further creates better communities! 

After a recommendation from an investor friend with 20+ units and after interviews of a couple different companies, I hired Roy Briley Property Managers in November of last year.

Much of the work is grunt work and not online, such as interviewing neighbors, law and code enforcement, schlepping courthouse and other county archives.

I interviewed a couple of management companies who would take 20% of the rental income, as I remember, or maybe 50% if they did the booking.

It allows you to recognize the revenue of doing a rental without Tenants, Trash, or Termites.

I would say think of ways you can make contact with and interview other property owners that use PM COs. 

Make sure and interview other management companies.

I also think valuehound academy is really world class.Take a listen of the interview I did of Gene Trowbridge for BP here for an overview:https://www.youtube.com/watch?

Basically the small banks that you don't normally recognize.