As others have mentioned, DSCR loans are generally for turnkey rentals (although outdated rentals may still qualify depending on the level of deferred maintenance). 

Not to mention significant fee's on each, because cost's are spread across such a small pool. 

As another poster mentioned rates are lower than they've been in the previous 18+ months but unless some very surprising economic data comes out between now and when you did your refi it seems unlikely that rates are going up in the short term and there is at least a decent chance that rates drop a little more before then. 

As others have mentioned, yes you can use section 8 rents with some DSCR lenders.

There are no restrictions preventing out-of-state investors from purchasing rental properties in Texas—these investors enjoy the same opportunities as Texas residents.Additionally, the financing restrictions you mentioned don’t align with reality.

Quote from @Amit Chugh: @Tim Delaney - I was referring that one of the properties is listed as Section 8 Property, why one would list that in title, does it make any different or benefit for buyer or seller mentioning section 8 in title?

There will not be one PM covering all the places you mention in your post, so maybe refine your search a little, and then you can start interviewing.

As I mentioned we have looked but with house prices rising constantly with outbidding making it worse we have had to table the idea until now.

As Dan mentioned above, if you have something stating that it was a 90 day refund policy, then you should pursue getting that refund and don't let up easily.

As @Troy Gandee mentioned use the tax estimator on the County website or call the assessor.