., your question is very broad and without context, no one can provide a specific response.  

Now that the house has been sold and we no longer have to communicate with a realtor, this behavior is worse. 

While I know that leaving no review is a possibility, they left us a review very quickly and my guess is it's a 5-star review since I went out of our way to not just answer her questions regarding recommendations for sight-seeing (and provide the links she requested) but to bring in more options (including a playset and keva planks) for the younger group of kids (since I realized most of our games were structured to a slightly older age range).

I just had one bolt mid lease leaving huge amounts of garbage I have no way to dispose of.

I have not set up internet or any other utilities, as there have been no tenants living in the property since I closed in late February. 

People have vacant properties for many reasons, there is no one to wait for moving out.

This is an exception.Theoretically you can have unlimite properties using VA loan as long as your benefit is not used up, but realistically no way you are going to keep on getting an exception.

No management or vacancy expense? 

Our 2nd floor tenant had no lease at the property, just a verbal month-to-month agreement.

I have found a renter via one of the listing portals, so no need for the flat fee rental MLS listing service.