However, I was recently informed that the major carriers are going to be classifying all traffic from OpenPhone (and several other applications) as application-to-person (A2P) traffic instead of person-to-person (P2P) traffic.

I represent Foremost, but have all of my CO investors with other insurance carriers. 

We work with many companies and are able to place business like yours that most carriers do not want. 

What would you say the top carriers are for Texas rental property insurance? 

@Matt Lindsey the insurance carrier will be obligated to give you the Loss of Rents. 

Again, the ownership of the Limited common elements (pipes that service some but not all of the units) is determined by the bylaws of the association.Normally a not at fault claim is not supposed to impact your rates if your carrier does not make a payment on it.

So far, on that deal, after 12 months, we have replaced 15 out of 21 tenants with tenants paying $80.00-$100.00 a month more than the previous tenants and we have caught HUGE water and sewer waste, along with cut insurance costs by switching carriers etc...

@Ken Gurta your approach and insurance carrier selection will depend on how many and what kind of properties you have.  

I would recommend Safeco or Travelers Insurance, 2 carriers that my agency is appointed with in GA.

Go to the broker who will shop your coverage with a number of carriers.